PROTOPOPE Pro"to*pope, n. Etym: [Proto- + pope: cf. F. protopope, Russ. protopop'.] (Gr. Ch.)
Defn: One of the clergy of first rank in the lower order of secular clergy; an archpriest; — called also protopapas.
PROTOPTERUS
Pro*top"te*rus, n. Etym: [NL., from Gr. (Zoöl.)
Defn: See Komtok.
PROTOSALT
Pro"to*salt, n. Etym: [Proto- + salt.] (Chem.)
Defn: A salt derived from a protoxide base. [Obs.]
PROTOSILICATE
Pro`to*sil"i*cate, n. Etym: [Proto- + silicate.] (Chem.)
Defn: A silicate formed with the lowest proportion of silicic acid, or having but one atom of silicon in the molecule.
PROTOSOMITE
Pro`to*so"mite, n. Etym: [Proto- + somite.] (Zoöl.)
Defn: One of the primitive segments, or metameres, of an animal.