_albus_, white.] A term applied to white textures.

AL-BU'MEN. [L. _albus_, white.] An animal substance of the same nature
as the white of an egg.

A-LU'MIN-UM. [L.] The name given to the metallic base of alumina.

AL'VE-O-LAR. [L. _alveolus_, a socket] Pertaining to the sockets of
the teeth.

AM-MO'NI-A. An alkali. It is composed of three equivalents of hydrogen
and one of nitrogen.

A-NAS'TO-MOSE. [Gr. +ana+, _ana_, through, and +stoma+, _stoma_,
mouth.] The communication of arteries and veins with each other.

AN-A-TOM'I-CAL. Relating to the parts of the body, when dissected or
separated.

A-NAT'O-MY. [Greek +ana+, _ana_, through, and +tome+, _tome_ a
cutting.] The description of the structure of animals. The word
_anatomy_ properly signifies dissection.

AN'GU-LI. [L. _angulus_, a corner.] A term applied to certain muscles
on account of their form.

AN-I-MAL'CU-LAE. [L. _animalcula_, a little animal.] Animals that are
only perceptible by means of a microscope.

AN'NU-LAR. [L. _annulus_, a ring.] Having the form of a ring.

AN-TI'CUS. [L.] A term applied to certain muscles.

A-ORT'A. [Gr. +aorte+, _aorte_; from +aer+, _aer_, air, and +tereo+,
_tereo_, to keep.] The great artery that arises from the left
ventricle of the heart.

AP-O-NEU-RO'SIS. [Gr. +apo+, _apo_, from, and +neuron+, _neuron_, a
nerve.] The membranous expansions of muscles and tendons. The ancients
called every white tendon _neuron_, a nerve.

AP-PA-RA'TUS. [L. _apparo_, to prepare.] An assemblage of organs
designed to produce certain results.

AP-PEND'IX. [L., an addition.] Something appended or added.

A'QUE-OUS. [L. _aqua_, water.] Partaking of the nature of water.

A-RACH'NOID. [Gr. +arachne+, _arachne_, a spider, and +eidos+,
_eidos_, form.] Resembling a spider's web. A thin membrane that
covers the brain.

AR'BOR. [L.] A tree. _Arbor vitae._ The tree of life. A term applied to
a part of the cerebellum.

AR'TE-RY. [Gr. +aer+, _aer_, air, and +tereo+, _tereo_, to keep;
because the ancients thought that the arteries contained only air.] A
tube through which blood flows from the heart.

A-RYT-E'NOID. [Gr. +arytaina+, _arutaina_, a ewer, and +eidos+,
_eidos_, form.] The name of a cartilage of the larynx.

AS-CEND'ENS. [L.] Ascending; rising.

AS-PHYX'I-A. [Gr. +a+, _a_, not, and +sphyxis+, _sphyxis_, pulse.]
Originally, want of pulse; now used for suspended respiration, or
apparent death.

AS-TRAG'A-LUS. [Gr.] The name