Defn: The chief secretary of the patriarch of Constantinople. Prothonotary warbler (Zoöl.), a small American warbler (Protonotaria citrea). The general color is golden yellow, the back is olivaceous, the rump and tail are ash-color, several outer tail feathers are partly white.

PROTHONOTARYSHIP
Pro*thon"o*ta*ry*ship, n.

Defn: Office of a prothonotary.

PROTHORACIC
Pro`tho*rac"ic, a. (Zoöl.)

Defn: Of or pertaining to the prothorax.

PROTHORAX
Pro*tho"rax, n. Etym: [Pref. pro- + thorax.] (Zoöl.)

Defn: The first or anterior segment of the thorax in insects. See
Illusts. of Butterfly and Coleoptera.

PRO THYALOSOMA
Pro* thy`a*lo*so"ma, n.; pl. Prothyalosomata. Etym: [NL., fr. Gr.
(Biol.)

Defn: The investing portion, or spherical envelope, surrounding the eccentric germinal spot of the germinal vesicle.

PROTHYALOSOME
Pro*thy"a*lo*some, n. (Biol.)