s_, a measure.] A cone in the cochlea around
which the membranes wind.

MO'LAR. [L. _mola_, a mill.] The name of some of the large teeth.

MOL'LIS. [L.] Soft.

MO'TOR, -ES. [L. _moveo_, to move.] A mover. A term applied to certain
nerves.

MU'COUS. Pertaining to mucus.

MU'CUS. A viscid fluid secreted by the mucous membrane, which it
serves to moisten and defend.

MUS'CLE. A bundle of fibres enclosed in a sheath.

MUS'CU-LAR. Relating to a muscle.

MY-O'DES. A term applied to certain muscles of the neck.

NA'SAL. Relating to the nose.

NA'SUS. [L., the nose.] The nostrils.

NERVE. An organ of sensation and motion in animals.

NERV'OUS. Relating to the nerves.

NEU-RI-LEM'A. [Gr. +neuron+, _neuron_, a nerve, and +lemma+, _lema_, a
sheath.] The sheath or covering of a nerve.

NI'GRUM. [L.] Black.

NI'TRO-GEN. That element of the air which is called azote.

NU-TRI'TION. The art or process of promoting the growth, or repairing
the waste of the system.

OC-CIP-I-TA'LIS. Pertaining to the back part of the head.

OC'CI-PUT. [L. _ob_ and _caput_, the head.] The hinder part of the
head.

OC-U-LO'RUM. Of the eyes.

OC'ULUS, -I. [L.] The eye.

OE-SOPH'A-GUS. [Gr. +oio+, _oio_, to carry, and +phago+, _phago_, to
eat.] The name of the passage through which the food passes from the
mouth to the stomach.

O-LEC'RA-NON. [Gr. +olene+, _olene_, the cubit, and +kranon+,
_kranon_, the head.] The elbow; the head of the ulna.

OL-FACT'O-RY. [L. _oleo_, to smell, and _facio_, to make.] Pertaining
to smelling.

O-MEN'TUM. [L.] The caul.

O'MO. [Gr. +omos+, _omos_, the shoulder.] Names compounded of this
word are applied to muscles attached to the shoulder.

OPH-THAL'MIC. [Gr. +ophthalmos+, _ophthalmos_, the eye.] Belonging to
the eye.

OP-PO'NENS. That which acts in opposition to something. The name of
two muscles of the hand.

OP'TI-CUS, OP'TIC. [Gr. +optomai+, _optomai_, to see.] Relating to the
eye.

OR-BIC'U-LAR. [L. _orbis_, a circle.] Circular.

OR-BIC-U-LA'RIS. A name applied to several muscles.

OR'GAN. A part of the system destined to exercise some particular
function.

OR'I-GIN. Commencement; source.

OS. [L.] A bone; the mouth of any thing.

O'RIS. [L. _os_, _oris_.] Of the mouth.

OS HY-OID'ES. [Gr. See HYOID.] The name of the bone at the base of the
tongue.

OS'MA-ZOME. [Gr. +osme+, _osme_, smell, and +zomos+, _zomos_, broth.]
A principle obtained from animal fibre which give