anisotropic
UK[ˌænaɪsəʊˈtrɒpɪk]US[ˌænaɪsoʊˈtrɑːpɪk]
adj
having physical properties that are different in different directions, for example, the strength of wood along the grain compared with across the grain.
adj
(in mathematics and physics) having a magnitude that varies according to the direction of measurement.
Morpheme Breakdown
an
iso
tropic
an
not
iso
equal
tropic
turning, changing
Etymology
the word anisotropic is a modern scientific term constructed from ancient greek elements. it is the direct antonym of "isotropic," which describes a substance whose properties are identical in all directions. the prefix "an-" negates the core concept of "iso-," meaning "equal." the suffix "-tropic" derives from the greek word for turning or direction. thus, the literal construction "not-equal-turning" logically evolved into the precise technical meaning of having properties that vary depending on the direction of measurement. this term exemplifies how greek roots were repurposed during the scientific revolution to create exact terminology for describing material and physical phenomena.
Analysis
Structure: an (not) + iso (equal) + tropic (turning, changing)
an- (greek origin, a prefix meaning "not" or "without"); iso- (greek origin, a combining form meaning "equal" or "same"); -tropic (from greek tropikos, "of or pertaining to a turn," from tropos, "a turn, way, manner," from the root trep-, "to turn").
Examples
wood is an anisotropic material because it is stronger along the grain than across it.
the crystal's anisotropic electrical conductivity makes it useful in certain electronic devices.
engineers must account for the anisotropic behavior of composite materials in their designs.