ural changes in the nerve.

Neurasthenia (nu-ras-then-iah). A group of symptoms resulting from
debility or exhaustion of the nerve centers.

Nocturnal (nok'-tur-nal). Pertaining to the night.

Node (nod). A knob. Protuberance.

Normal (nor'-mal). Conforming to natural law or order.

Nostalgia (nos-tal'-je-ah). Homesickness.

Nostrum (nos'trum). A quack; secret medicine.

Nutritious (nu'trish'us). Nourishing.

Obtuse (ob-tus'). Dull.

Obesity (obes'it-e). An excessive development of fat.

Oedema (e-de'mah). An infiltration of serum in a part; watery swelling.

Obstetrics (ob-stet'-riks). Care of women during pregnancy, confinement
and after.

Occipital (ok-sip'it-al). Pertaining to the back part of the head
(occiput).

Olfactory Nerves (ol-fak'-to-re). Nerves of smell.

Omentum (o-men'tum). An apron. A fold of the peritoneum connecting the
abdominal organs with the stomach.

Ophthalmia (off-thal'-meah). Inflammation of the eye.

Opiates (o'-pe-ats). A preparation of opium.

Optic (op'tik). Pertaining to vision or to the science of optics.

Optic nerve. Nerve of sight.

Orthopnea (or-thop-ne'ah). A condition marked by quick and labored
breathing and relief is only had by remaining
in an upright position.

Ossific (os-if '-ik). Producing bone.

Ossification (os'if-ik-a'shun). The formation of bone.

Ovary (o'var-e). One of a pair of glandular organs giving rise to ova
(eggs).

Ovariotomy (o-va-re-ot'-o-me). Removal of an ovary.

Ovum (o'vum). An egg; the reproductive cell of an animal or vegetable.

[904 MOTHERS' REMEDIES]

Oxygen (oks'e-gen). A colorless, tasteless, odorless gas.

Palate (pal'-at). The roof of the mouth.

Palpitation (pal-pit-a'shun). A fluttering or throbbing, especially of the
heart, of which a person is conscious.

Palliative (pal'-e-a-tiv). An agent that relieves or soothes the symptom
of a disease without curing it.

Panacea (pan-a-se'ah). A cure-all.

Papilla (pap-il'-ah). A small nipple-like eminence.

Paracentesis (par'-ah-sen-te'-sis). Puncture of the wall of a cavity of
the body, such as the chest, drum
membrane, etc.

Paralytic (par-ah-lit'ik), Affected wit