from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. chemical agent capable of activity
Sorry, no etymologies found.
He closely attached himself to Prince Rupert, and was an active agent in affecting the reconciliation between that prince and his uncle Charles I. Colonel Legge distinguished himself in several actions, and was wounded and taken prisoner at the battle of Worcester; it was said that he would have "been executed if his wife had not contrived his escape from Coventry gaol in her own clothes."
Page 624, Volume 2 ronment as producing heritable change through a stimulus-response interaction — with the organism itself taking on the role of active agent in effecting change.
Cherebh, "by the sword," substitutes the genitive for the active agent with the passive (K.S. 336 n).
Though an active agent in effecting the beautiful autumnal changes in the foliage, frost does not seem indispensable; one finds that the leaves turn at a certain time, whether we have had frost or not.