PROTOCANONICAL
Pro`to*ca*non"ic*al, a.
Defn: Of or pertaining to the first canon, or that which contains the authorized collection of the books of Scripture; — opposed to deutero-canonical.
PROTOCATECHUIC
Pro`to*cat`e*chu"ic, a. (Chem.)
Defn: 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.
PROTOCERCAL
Pro`to*cer"cal, a. Etym: [Proto- + Gr. (Zoöl.)
Defn: Having a caudal fin extending around the end of the vertebral column, like that which is first formed in the embryo of fishes; diphycercal.
PROTOCOCCUS
Pro`to*coc"cus, n. Etym: [NL. See Proto-, and Coccus.] (Bot.)
Defn: A genus of minute unicellular algæ including the red snow plant
(Protococcus nivalis).
PROTOCOL Pro"to*col, n. Etym: [F. protocole, LL. protocollum, fr. Gr. prw os the first (see Proto-) +
1. The original copy of any writing, as of a deed, treaty, dispatch, or other instrument. Burrill.