-ous

Definition of -ous

suff.	1.	An adjective suffix meaning full of, abounding in, having, possessing the qualities of, like; as in graci ous, abounding in grace; ardu ous, full of ardor; bulb ous, having bulbs, bulblike; riot ous, poison ous, pite ous, joy ous, etc.
	2.	(Chem.) A suffix denoting that the element indicated by the name bearing it, has a valence lower than that denoted by the termination -ic; as, nitr ous, mercur ous, ferr ous, sulphur ous, etc., as contrasted with nitr ic, mercur ic, ferr ic, sulphur ic, etc.

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