from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Tending to lower the rate of vital physiological activities.
- n. An agent, especially a drug, that decreases the rate of vital physiological activities.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A pharmacological substance which decreases neuronal or physiological activity.
- n. An agent that inhibits the flotation of a mineral or minerals.
- adj. Acting as a depressant.
from the GNU version of the Collaborative International Dictionary of English
- n. An agent or remedy which lowers the vital powers.
from The Century Dictionary and Cyclopedia
- n. In medicine, a sedative.
- n. A therapeutic agent which is employed to reduce mental or physical strength.
- Causing a lowering of the physical or mental forces.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. capable of depressing physiological or psychological activity or response by a chemical agent
- n. a drug that reduces excitability and calms a person
Sorry, no etymologies found.