Alphabetical word directory
English words starting with T
Showing words 841–960 of 3,025. Choose a word to read its meaning, etymology and origin.
then-record
adjBeing or having been a record at a previous, specified time.
then-secretary
nA person who held the position of secretary at a previous time, often used to specify a particular individual in a past context.
then-unknown
adjNot known or recognized at that time in the past.
then-vice
[adjective]Relating to or characteristic of a former vice or deputy position.
then-wife
nA woman to whom one was married at a specific past time being discussed; a former wife.
thence
advFrom that place or source.
thenceforth
advFrom that time, place, or point onward.
theocentric
adjHaving God as the central focus of attention or interest; viewing everything in relation to God.
theocracy
na system of government in which priests rule in the name of God or a god.
theocrat
nA person who advocates for or rules under a system of government in which religious authorities control the state, or God is recognized as the supreme civil ruler.
theocratic
adjRelating to or denoting a system of government in which priests rule in the name of God or a god.
theodicy
nthe part of theology concerned with defending the goodness and omnipotence of god in the face of the existence of evil and suffering in the world.
theodolite
nA precision optical instrument for measuring horizontal and vertical angles, used in surveying and meteorology.
theologian
na person who studies or is an expert in theology.
theological
adjRelating to the study of the nature of God and religious belief.
theologically
advin a way that relates to theology or the study of God and religious belief
theology
nThe study of the nature of God and religious belief.
theophylline
na bitter crystalline alkaloid found in tea leaves, used as a bronchodilator in the treatment of asthma and other respiratory conditions.
theorem
nA statement or idea that can be proved to be true by reasoning.
theoretic
adjRelating to or based on theory, rather than practical experience or application.
theoretical
adjRelating to or based on theory rather than practical experience or application.
theoretically
advAccording to a scientific theory or a logical principle, rather than from practical experience.
theoretician
na person who develops or studies the theoretical parts of a subject.
theorist
na person who forms or studies theories, especially in a particular field of knowledge.
theorization
nThe act or process of forming a theory or theories about something.
theorize
vto form a theory or theories about something, especially in the absence of definite proof.
theorized
vformed a theory or set of theories about something.
theorizing
vforming a theory or set of theories about something.
theory
nA formal set of ideas intended to explain why something happens or exists
theory-based
adjFounded on or derived from a particular theory or set of ideas.
theory-driven
adjGuided by or based on a set of ideas or principles intended to explain something.
therapeutic
adjrelating to the treatment of disease or injury
therapeutical
adjRelating to the treatment or cure of disease or medical conditions.
therapeutically
advIn a way that relates to the treatment or cure of a disease or medical condition.
therapeutics
nthe branch of medicine concerned with the treatment of disease and the action of remedial agents.
therapist
na person skilled in a particular type of therapy, especially one who treats people with mental or emotional problems by talking to them.
therapy
nThe treatment of a physical problem or an illness.
there
advin, at, or to that place or position
thereabouts
advnear that place, time, number, or amount.
thereafter
advafter that time or event; from that time onward.
thereby
advBy that means; as a result of that.
therefor
advFor that or this purpose; for it.
therefore
advfor that reason; as a result
therefrom
advFrom that place, thing, or source.
therein
advIn that place, document, or thing.
thereof
advOf the thing just mentioned; from that cause or origin.
thereon
advon or onto the thing that has been mentioned
thereto
advto that, that, or it.
theretofore
advup to that time; before that event or time.
thereupon
advImmediately or shortly after that event or action.
therewith
advImmediately following or as a result of that; with that.
thermal
adjrelating to or caused by heat
thermally
advIn a way that relates to heat or temperature.
thermals
nRising currents of warm air, used by birds and gliders to gain height.
thermistor
na type of resistor whose electrical resistance changes significantly with temperature.
thermocline
nA layer in a body of water where the temperature changes rapidly with depth.
thermocouple
nA device for measuring temperature, consisting of two wires of different metals joined at both ends. One junction is placed where the temperature is to be measured, and a voltage generated by the temperature difference between the two junctions is measured.
thermodynamic
adjrelating to the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy).
thermodynamics
[noun]the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy) and the conversion of one into another.
thermoelectric
adjRelating to or involving the direct conversion of heat into electricity.
thermographic
adjRelating to or using a process of producing an image using infrared radiation to show the distribution of temperature on an object or area.
thermography
nA technique for producing images that show the distribution of heat over an area or object.
thermoluminescence
nThe emission of light from a material when it is heated, caused by the release of trapped electrons from defects in its crystal structure.
thermomechanical
adjRelating to or involving both thermal and mechanical properties or effects.
thermometer
nan instrument for measuring and indicating temperature, typically using a sealed glass tube containing a liquid (such as mercury or alcohol) that expands and rises in the tube as the temperature increases.
thermonuclear
adjRelating to or using nuclear reactions that occur only at very high temperatures, especially those involving the fusion of light nuclei.
thermophilic
adj(of an organism, especially a bacterium) growing best at high temperatures, typically between 45°C and 80°C.
thermoplastic
adj(of a substance) becoming soft when heated and hard when cooled, and able to be repeatedly shaped in this way.
thermoregulation
nThe process by which an organism or system maintains its internal body temperature within a certain range, despite changes in the environment.
thermos
nA container, typically a bottle or flask, that keeps liquids hot or cold by means of a double wall enclosing a vacuum.
thermostat
nA device that automatically controls temperature by switching a heating or cooling system on and off.
theropod
nA member of a major group of carnivorous, bipedal dinosaurs including allosaurus and tyrannosaurus.
thesaurus
na book that lists words in groups of synonyms and related concepts.
these
pronoun, pluralused to refer to specific people or things that are near the speaker or have already been mentioned.
thesis
nA long piece of writing on a particular subject, especially one that is done for a university degree.
thespian
adjof or relating to drama; dramatic
theta
nThe eighth letter of the Greek alphabet (Θ, θ)
they
pronUsed to refer to two or more people or things previously mentioned or easily identified.
thiamin
na vitamin of the b complex, found in unrefined cereals, beans, and liver, a deficiency of which causes beriberi.
thiamine
na vitamin of the b complex, found in unrefined cereals, beans, and liver, a deficiency of which causes beriberi.
thick
adjhaving a large distance between two opposite surfaces; not thin
thick-cut
adj(of food, especially bacon or slices of fruit) cut into relatively thick pieces.
thick-necked
adjhaving a thick or strong neck
thick-skinned
adjnot easily upset or offended by criticism or insults; insensitive.
thick-soled
adjhaving a sole that is thick or made of thick material.
thick-walled
adjhaving walls that are thick in dimension or substance
thicken
vto become thicker or to make something thicker
thickened
adjmade or become thick or thicker in consistency
thickener
na substance added to a liquid to make it thicker or more viscous.
thickening
nthe process of becoming thicker or making something thicker
thicket
nA dense group of bushes or small trees
thickly
advIn a way that forms a thick layer or has a large distance between opposite surfaces
thickness
nthe distance between the opposite surfaces of something; the quality of being thick rather than thin
thickset
adj(of a person) having a broad, solid, and often strong body shape
thief
nA person who steals something from another person or place, especially secretly and without using force.
thievery
nthe act or practice of stealing; theft.
thieving
adjEngaged in or characterized by stealing.
thigh
nthe part of the human leg between the hip and the knee.
thigh-deep
adj(of water, mud, snow, etc.) reaching up to the level of a person's thighs
thigh-high
adjreaching up to or just above the thighs
thigh-length
adj(of a garment) reaching down to the top of the thighs.
thighbone
nthe large, thick bone in the upper part of the leg between the hip and the knee; the femur.
thimble
na small metal or plastic cap worn on the end of the finger to protect it when pushing a needle through cloth while sewing.
thimbleful
nA very small quantity of a liquid, especially an alcoholic drink.
thimerosal
nan organomercury compound formerly used as a preservative in some vaccines and other medical products.
thin
adjhaving a small distance between opposite surfaces; not thick
thin-crust
adj(of pizza or a similar food) having a thin, crisp layer of baked dough as a base.
thin-faced
adjHaving a face that appears narrow or lacking in flesh
thin-film
adjRelating to or being a very thin layer of a substance deposited on a surface, especially in the context of electronics, optics, or coatings.
thin-lipped
adjhaving thin lips
thin-skinned
adjeasily upset by criticism or insults; sensitive.
thin-sliced
adjCut into very thin, flat pieces.
thin-walled
adjHaving walls that are thin in thickness.
thine
pronan archaic or dialect form of 'yours', used before a vowel or 'h'.
thing
nAn object, item, or entity that is not specifically named or is difficult to define precisely.
thingamajig
na word used to refer to or replace the name of a person or thing that one cannot recall or does not know.
thingy
nA word used to refer to or describe an object, item, or gadget whose name one does not know, cannot remember, or does not need to specify.
think
vTo have an opinion, belief, or idea about something.
thinkable
adjAble to be thought of or imagined; conceivable.
thinker
na person who thinks deeply and seriously, especially about important subjects.