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Of or pertaining to the first canon, or that which contains the authorized collection of the books of Scripture; -- opposed to deutero-canonical.

Pertaining to, derived from, or designating, an organic acid which is obtained as a white crystalline substance from catechin, asafetida, oil of cloves, etc., and by distillation itself yields pyrocatechin.

Having a caudal fin extending around the end of the vertebral column, like that which is first formed in the embryo of fishes; diphycercal.

A genus of minute unicellular algæ including the red snow plant (Protococcus nivalis).

To make a protocol of.

One who draughts protocols.

The embryonic shell, or first chamber, of ammonites and other cephalopods.

A kind of granite or gneiss containing a silvery talcose mineral.

Same as Proterogynous.

A genus of fossil horses from the Lower Pliocene. They had three toes on each foot, the lateral ones being small.

The first martyr; the first who suffers, or is sacrificed, in any cause; -- applied esp. to Stephen, the first Christian martyr.

The second segment of one of the Gregarinæ.

of some stars), obtained at the highest available laboratory temperatures (Lockyer); as protocalcium, protochromium, protocopper, protonickel, protosilicon, protostrontium, prototitanium, protovanadium. -- Pro`to*me*tal"ic (#), a.

Having the most primitive character; in the earliest form; as, a protomorphic layer of tissue. H. Spencer.

The primary growth from the spore of a moss, usually consisting of branching confervoid filaments, on any part of which stem and leaf buds may be developed.

Same as Prothonotary.

An organism whose nature is so difficult to determine that it might be referred to either the animal or the vegetable kingdom.

A protopope.

Any unicellular plant, or plant forming only a plasmodium, having reproduction only by fission, gemmation, or cell division.

Paleobotany.