evaporator
UK[ɪˈvæpəreɪtə]US[ɪˈvæpəreɪtər]
n
A device or piece of equipment used to turn a liquid into vapor.
n
The part of a refrigeration system in which the refrigerant evaporates and absorbs heat.
Morpheme Breakdown
e
vapor
ator
e
out
vapor
steam
ator
agent suffix
Etymology
The word "evaporator" is a modern English formation built directly from Latin components. Its core is the Latin noun "vapor," meaning steam or exhalation, which itself may trace back to the Proto-Indo-European root weh₂p- meaning to give off vapor. The prefix "e-" (a variant of "ex-") signifies "out," conveying the action of driving vapor out. The suffix "-ator" is a productive agentive suffix in Latin, used to form nouns denoting an instrument or agent. Thus, the literal construction "e-vapor-ator" logically describes "a thing that causes (liquid) to turn out as steam." This transparent morphological logic was borrowed into English to name the technical device that performs the specific function of evaporation.
Analysis
Structure: e (out) + vapor (steam) + ator (agent suffix)
e: A Latin prefix meaning "out of" or "from," derived from the Latin preposition "ex."
vapor: A Latin root meaning "steam" or "exhalation."
ator: A Latin agent noun suffix, derived from "-ator," indicating a person or thing that performs an action.
Examples
The air conditioner's evaporator coil was covered in frost.
In the desalination plant, seawater passes through a large evaporator to remove salt.
The chemist set up a rotary evaporator to gently remove the solvent from the solution.