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A zeolitic mineral occuring in delicate radiating groups of white crystals. It is a hydrous silicate of aluminia and lime. Called also lime mesotype.

A leek-green or brownish mineral occurring in orthorhombic crystals. It is a hydrous arseniate of iron. [Written also skorodite.]

ic proboscis, about a foot in length. Another species of smaller size (M. angustirostris) occurs on the coast of Lower California, but is now nearly extinct.

Occurring in good time, in due season, or in proper time for the purpose; suitable to the season; opportune; timely; as, a seasonable supply of rain. Mercy is seasonable in the time of affliction. Ecclus. xxxv. 20. -- Sea"son*a*ble*ness, n. -- Sea"son*a*bly, adv.

Immediately following the first; next to the first in order of place or time; hence, occuring again; another; other. And he slept and dreamed the second time. Gen. xli. 5.

quent upon another disease; as, Bright's disease is often secondary to scarlet fever. (b) Occuring in the second stage of a disease; as, the secondary symptoms of syphilis. Secondary accent. See the Note under Accent, n., 1. -- Secondary age. (Geol.) The Mesozoic age, or age before the Tertiary. See Mesozoic, and Note…

ubes and segmental ducts. (b) (Zoöl.) The tubular excretory organs, a pair of which often occur in each of several segments in annelids. They serve as renal organs, and often, also, as oviducts and sperm ducts. See Illust. under Sipunculacea. -- Segmental tubes (Anat.), the tubes which primarily open into the segmenta…

A word of doubtful meaning, occuring frequently in the Psalms; by some, supposed to signify silence or a pause in the musical performance of the song. Beyond the fact that Selach is a musical term, we know absolutely nothing about it. Dr. W. Smith (Bib. Dict.)

A variety of gypsum, occuring in transparent crystals or crystalline masses.

Pertaining to, or accomplished in, half a day, or twelve hours; occurring twice every day.

eakness. "Senile maturity of judgment." Boyle. Senile gangrene (Med.), a form of gangrene occuring particularly in old people, and caused usually by insufficient blood supply due to degeneration of the walls of the smaller arteries.

A kind of muscovite occuring in silky scales having a fibrous structure. It is characteristic of sericite schist.

intention may be included; emphasize the shall, and the event is described as certain to occur, and the expression approximates in meaning to our emphatic "I will go." In a question, the relation of speaker and source of obligation is of course transferred to the person addressed; as, "Shall you go" (answer, "I shall…

A discharge, from the vagina, of mucus streaked with blood, occuring a short time before labor.

Carbonate of iron, an important ore of iron occuring generally in cleavable masses, but also in rhombohedral crystals. It is of a light yellowish brown color. Called also sparry iron, spathic iron.

A sort of pneumonia occuring in iron workers, produced by the inhalation of particles of iron.

A sign made for the purpose of giving notice to a person of some occurence, command, or danger; also, a sign, event, or watchword, which has been agreed upon as the occasion of concerted action. All obeyed The wonted signal and superior voice Of this great potentate. Milton.

A nonmetalic element analogous to carbon. It always occurs combined in nature, and is artificially obtained in the free state, usually as a dark brown amorphous powder, or as a dark crystalline substance with a meetallic luster. Its oxide is silica, or common quartz, and in this form, or as silicates, it is, next to ox…

An alkaloid occuring in the seeds of mustard. It is extracted, in combination with sulphocyanic acid, as a white crystalline substance, having a hot, bitter taste. When sinapine is isolated it is unstable and undergoes decomposition.

aining to mustard oil; specifically, designating an acid of the oleic acid series said to occur in mistard oil.