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Tissue which is not stained by fluid dyes. W. Flemming.

Of or pertaining to an acid; as, acid reaction.

Containing a high percentage of silica; -- opposed to basic. an acidic solution.

Containing or yielding an acid.

An instrument for ascertaining the strength of acids. Ure.

the law of chemical combinations, or the fact that, to produce a complete reaction, a certain definite weight of reagent is required. -- Ac`id*i*met"ric*al, a.

-acid; sourish; as, an acidulous tincture. E. Burke. Acidulous mineral waters, such as contain carbonic anhydride.

g the surface of a metal plate (as a stereotype plate) with steellike iron by means of voltaic electricity; steeling.

Containing seeds or stones of grapes, or grains like them.

culmination. The very acme and pitch of life for epic poetry. Pope. The moment when a certain power reaches the acme of its supremacy. I. Taylor.

Pertaining to acnodes.

Pertaining to acology.

An organic base, in the form of a white powder, obtained from Aconitum lycoctonum. Eng. Cyc.

An extract or tincture obtained from Aconitum napellus, used as a poison and medicinally. Winter aconite, a plant (Eranthis hyemalis) allied to the aconites.

Of or pertaining to aconite.

omposed largely of nettling cells (cnidæ), thrown out of the mouth or special pores of certain Actiniæ when irritated.

Pertaining to the sense of hearing, the organs of hearing, or the science of sounds; auditory. Acoustic duct, the auditory duct, or external passage of the ear. -- Acoustic telegraph, a telegraph making audible signals; a telephone. -- Acoustic vessels, brazen tubes or vessels, shaped like a bell, used in ancient the…

Of or pertaining to acoustics.

The quality of being acquirable; attainableness. [R.] Paley.

The act of acquiring, or that which is acquired; attainment. "Rules for the acquirement of a taste." Addison. His acquirements by industry were . . . enriched and enlarged by many excellent endowments of nature. Hayward.