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An alkaloid found in opium in small quantities, and extracted as a white crystalline substance.

The viscid and more or less granular material of vegetable and animal cells, possessed of vital properties by which the processes of nutrition, secretion, and growth go forward; the so-called " physical basis of life;" the original cell substance, cytoplasm, cytoblastema, bioplasm sarcode, etc.

Protoplasmic.

Of or pertaining to protoplasm; consisting of, or resembling, protoplasm.

individuals, each of which is hypothetically considered to be the descendant of the same protoplast, or of the same pair of protoplasts. Latham.

A division of fresh-water rhizopods including those that have a soft body and delicate branched pseudopodia. The genus Gromia is one of the best-known.

First-formed. Howell.

The basal portion, or two proximal and more or less consolidated segments, of an appendage of a crustacean.

clergy of first rank in the lower order of secular clergy; an archpriest; -- called also protopapas.

See Komtok.

A salt derived from a protoxide base. [Obs.]

A silicate formed with the lowest proportion of silicic acid, or having but one atom of silicon in the molecule.

One of the primitive segments, or metameres, of an animal.

That one of a series of sulphides of any element which has the lowest proportion of sulphur; a sulphide with but one atom of sulphur in the molecule.

A protosulphide. [Obs.]

Same as Monotremata.

Same as Malacopoda.

m; exemplar; archetype. They will turn their backs on it, like their great precursor and prototype. Burke.

embryo breaks up on either side of the anterior part of the notochord; a mesoblastic, or protovertebral, somite. See Illust. of Ectoderm.

Of or pertaining to the protovertebræ.