ADIABATIC

adiabatic

(adjective) occurring without loss or gain of heat; “adiabatic expansion”

Source: WordNet® 3.1


Etymology

Adjective

adiabatic (not comparable)

(physics, thermodynamics, of a process) That occurs without gain or loss of heat (and thus with no change in entropy, in the quasistatic approximation).

(physics, quantum mechanics, of a process) That involves the slow change of the Hamiltonian of a system from its initial value to a final value.

Antonyms

• (thermodynamics): diabatic

• (quantum mechanics): nonadiabatic

Source: Wiktionary


Ad`i*a*bat"ic, a. Etym: [Gr. (Physics)

Definition: Not giving out or receiving heat.

– Ad`i*a*bat`ic*al*ly, adv. Adiabatic line or curve, a curve exhibiting the variations of pressure and volume of a fluid when it expands without either receiving or giving out heat. Rankine.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

18 March 2025

ODONTOGLOSSUM

(noun) any of numerous and diverse orchids of the genus Odontoglossum having racemes of few to many showy usually large flowers in many colors


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Coffee Trivia

Coffee has initially been a food – chewed, not sipped. Early African tribes consume coffee by grinding the berries together, adding some animal fat, and rolling the treats into tiny edible energy balls.

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