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through the center of the eye perpendicular to its anterior and posterior surfaces. In a normal eye it is in the direction of the optic axis that objects are most distinctly seen. (b) The line in a doubly refracting crystal, in the direction of which no double refraction occurs. A uniaxial crystal has one such line, a…

are mostly perennial herbs having the stamens and pistils united in a single column, and normally three petals and three sepals, all adherent to the ovary. The flowers are curiously shaped, often resembling insects, the odd or lower petal (called the lip) being unlike the others, and sometimes of a strange and unexpec…

Right arrangement; a normal, correct, or fit condition; as, the house is in order; the machinery is out of order. Locke.

real odor by means of chlorpicrin, and is believed to be a derivative of the hypothetical normal carbonic acid, C.(OH)4.

Giving an image in correct or normal proportions; giving a flat field of view; as, an orthoscopic eyepiece.

Designating the form of silicic acid having the normal or highest number of hydroxyl groups.

Abnormal hardness and density of bone.

The state of being excessively or abnormally full, so as to cause overflow, distention, or congestion; excess of fullness; surfeit.

to pulsate violently; to flutter; -- said specifically of the heart when its action is abnormal, as from excitement.

A rapid pulsation; a throbbing; esp., an abnormal, rapid beating of the heart as when excited by violent exertion, strong emotion, or by disease.

y to pain, including absence of sensibility to pain, excessive sensibility to pain, and abnormal painful results of stimuli. -- Par`al*ge"sic (#), a.

trollably excited; any emotion or sentiment (specifically, love or anger) in a state of abnormal or controlling activity; an extreme or inordinate desire; also, the capacity or susceptibility of being so affected; as, to be in a passion; the passions of love, hate, jealously, wrath, ambition, avarice, fear, etc.; a pas…

Abnormal regularity; the state of certain flowers, which, being naturally irregular, have become regular through a symmetrical repetition of the special irregularity.

Abnormally regular or symmetrical. Darwin.

A perfect, or normal, feather.

Like or pertaining to a normal feather.

An extensive division of Coleoptera, including those that normally have five-jointed tarsi. It embraces about half of all the known species of the Coleoptera.

Viscid mucus secreted in abnormal quantity in the respiratory and digestive passages.

(a) Metaphosphoric acid in the form of glassy semitransparent masses or sticks. (b) Pure normal phosphoric acid. -- Phosphoric acid (Chem.), a white crystalline substance, H3PO4, which is the most highly oxidized acid of phosphorus, and forms an important and extensive series of compounds, viz., the phosphates. -- S…

An abnormal or excessive production of leaves.