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A prefix equivalent to super- or per-; as hyperoxide, or peroxide. [Obs.] See Per-.

A prefix denoting that the element to the name of which it is prefixed enters with a low valence, or in a low state of oxidization, usually the lowest, into the compounds indicated; as, hyposulphurous acid.

Pertaining to, or derived from, chlorine having a valence lower than in chlorous compounds. Hypochlorous acid (Chem.), an acid derived from chlorine, not known in a pure state, but forming various salts, called hypochlorites.

Containing or derived from nitrogen having a lower valence than in nitrous compounds. Hyponitrous acid (Chem.), an unstable nitrogen acid, NOH, whose salts are produced by reduction of the nitrates, although the acid itself is not isolated in the free state except as a solution in water; -- called also nitrosylic acid.…

A figure in which the natural order of sense is reversed; hysterology; as, valet atque vivit, "he is well and lives."

uffix, denoting that the element indicated enters into certain compounds with its highest valence, or with a valence relatively higher than in compounds where the name of the element ends in -ous; as, ferric, sulphuric. It is also used in the general sense of pertaining to; as, hydric, sodic, calcic.…

ce, also, a derivative of ammonia, in which two atoms of hydrogen have been replaced by divalent basic or acid radicals; -- frequently used as a combining form; as, succinimide.

Of or pertaining to the title or office of imperator. "Imperatorial laurels." C. Merivale.

reference to movement or tendency toward a certain limit or environment; -- sometimes equivalent to into; as, to put seed in the ground; to fall in love; to end in death; to put our trust in God. He would not plunge his brother in despair. Addison. She had no jewels to deposit in their caskets. Fielding.…

fluxions in treating these differences as finite, instead of infinitely small, and is equivalent to the calculus of finite differences.

tated, copied, or counterfeited; beyond imitation; surpassingly excellent; matchless; unrivaled; exceptional; unique; as, an inimitable style; inimitable eloquence. "Inimitable force." Dryden. Performing such inimitable feats. Cowper. -- In*im"i*ta*ble*ness, n. -- In*im"i*ta*bly, adv.

y of the present or current month; as, the sixth instant; -- an elliptical expression equivalent to the sixth of the month instant, i. e., the current month. See Instant, a., 3.

Equivalent; equal to; -- usually with of. [R.] This very consideration to a wise man is instead of a thousand arguments, to satisfy him, that in those times no such thing was believed. Tillotson.

Any excess of advantage over and above an exact equivalent for what is given or rendered. You shall have your desires with interest. Shak.

avities or between the cracks or layers of other rocks. The term is sometimes used as equivalent to plutonic rocks. It is then contrasted with effusive or volcanic rocks. -- In*tru"sive*ly, adv. -- In*tru"sive*ness, n.

r containing, iodine; specif., denoting those compounds in which it has a relatively high valence; as, iodic acid. Iodic acid, a monobasic acid, consisting of iodine with three parts of oxygen and one of hydrogen.

o iridium; -- said specifically of those compounds in which iridium has a relatively high valence.

or pertaining to iridium; -- applied specifically to compounds in which iridium has a low valence.

equal to 107 units of work in the C. G. S. system of units (ergs), and is practically equivalent to the energy expended in one second by an electric current of one ampere in a resistance of one ohm. One joule is approximately equal to 0.738 foot pounds. Joule's equivalent. See under Equivalent, n.

A measure of capacity equal to a cubic meter, or a thousand liters. It is equivalent to 35.315 cubic feet, and to 220.04 imperial gallons, or 264.18 American gallons of 321 cubic inches.