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One skilled in taxonomy.

That division of the natural sciences which treats of the classification of animals and plants; the laws or principles of classification.

Same as Taxer, n., 2.

One who is assessed and pays a tax.

The positive or negative stimulus exerted by oxygen on aërobic and anaërobic bacteria. -- A`ër*o*tac"tic (#), a.

The arrangement of flowers in a cluster; the science of the relative position of flowers; inflorescence.

state of disorder that characterizes nervous fevers and the nervous condition. Locomotor ataxia. See Locomotor.

Characterized by ataxy, that is, (a) by great irregularity of functions or symptoms, or (b) by a want of coordinating power in movements. Ataxic fever, malignant typhus fever. Pinel.

The classification of living organisms according to their structural character; taxonomy.

The arrangement of bristles on an insect.

algæ, etc., to chemical substances held in solution. They may be attracted (positive chemotaxis) or repelled (negative chemotaxis). -- Chem`o*tac"tic (#), a. -- Chem`o*tac"tic*al*ly, adv.

Bleeding at the nose.

Good or established order or arrangement. [R.] E. Waterhouse.

Variation in arrangement from that existing in a normal form; heterogenous arrangement or structure, as, in botany, the deviation in position of the organs of a plant, from the ordinary or typical arrangement.

Same as Homotaxis.

Relating to homotaxis.

Similarly in arrangement of parts; -- the opposite of heterotaxy.

Same as Homotaxis.

The pharynx of a rotifer. It usually contains four horny pieces. The two central ones form the incus, against which the mallei, or lateral ones, work so as to crush the food.

That variety of xylene, or dimethyl benzene, in which the two methyl groups occupy the meta position with reference to each other. It is a colorless inf