MOL´ECULE, _n._ Embryo part of the impregnated ovum. See CICATRICULUM.
MOL´LIPILOSE, _a._ Softly downy.
MONOG´AMOUS, _a._ Pairing; mating with a single one of the opposite sex.
Birds of which the male assists in incubation and care of the young are
called _doubly monogamous_.
MONOG´AMY, _n._ The paired state.
MONOMOR´PHIC, _a._ Of the same or essentially similar type of structure.
Opposed to _polymorphic_.
MONOTO´KOUS, _a._ Uniparous; laying a single egg.
MON´STER, _n._ Any malformed animal.
MORPHOL´OGY, _n._ The science of form. The doctrine of the laws of
form. Structure itself, considered as to its principles; e.g. the
_morphology_ of the odontoid process of the axis is centrum of the
atlas, the _morphological_ interpretation of the tibial condyles is
tarsal ossicles. The segment called metatarsus is, _morphologically_,
tarso-metatarsus. Homology rests upon morphology; analogy is generally
predicable upon teleology.
MOR´SUS DIABOL´ICUS, _n._ An epithet of the infundibuliform orifice of
the oviduct which takes in the ova.
MUCIP´AROUS, _a._ Producing mucus.
MU´COUS MEM´BRANE, _n._ Lining of the alimentary and other interior
tracts of the body, secreting mucus.
MU´CRO, _n._ A sharp spine.
MU´CRONATE, _a._ Spine-tipped, as the tail of a swift.
MU´CUS, _n._ Peculiar secretion of the mucous membrane.
MULTIF´IDUS, _a._ for _n._ A certain spinal muscle.
MULTIP´AROUS, _a._ Producing many young.
MUS´CLE, _n._ (_musculus_, pl. _musculi_). Organ of animal motion,
consisting of contractile fibre, the shortening of which draws upon
attached parts. With the muscular tissue is usually associated a fibrous
ligament, the tendon or “leader.” Voluntary muscles have striped fibre,
contracting at will of the animal; such are all those of the general
system, moving the bones, effecting locomotion, mastication, etc.
Involuntary muscles mostly have plain fibre contractile under special
stimuli without obedience to the will; such are those of the intestines,
etc.
MUS´CULAR, _a._ Pertaining to muscle; having muscle or composed of
muscle; resulting from muscle: as, _muscular_ fibre, _muscular_ organ,
_muscular_ exertion. Also, strong, vigorous: the falcon is a _muscular_
bird.
MU´TICUS, _a._ Unarmed; as, a toe without a claw, an unspurred tarsus.
(133.)
MYELENCEPH´ALON, _n._ Whole cerebro-spinal column.
MY´ELON, _n._ The spinal cord.
MYOLEM´MA, _n._ Sheath of muscular fibre.
MYOL´OGY, _n._ Doctrine or description of the muscles.
MYX´A, _n._ End of the mandible, as far as the symphysis, corresponding
to the dertrum of the maxilla. (25).