PROTOZOON; PROTOZOOEN Pro`to*zo"ön (-ôn), n.; pl. Protozoa. Etym: [NL.] (Zoöl.) (a) One of the Protozoa. (b) A single zooid of a compound protozoan.
PROTOZOONITE; PROTOZOOENITE
Pro`to*zo"ö*nite, n. (Zoöl.)
Defn: One of the primary, or first-formed, segments of an embryonic arthropod.
PROTRACHEATA
Pro*tra`che*a"ta, n. pl. Etym: [NL. See Pro-, and Trachea.] (Zoöl.)
Defn: Same as Malacopoda.
PROTRACT
Pro*tract", v. t. [imp. & p. p. Protracted; p. pr. vb. n.
Protracting.] Etym: [L. protractus, p. p. of protrahere to forth,
protract; pro forward + trahere to draw. See Portrait, Portray.]
1. To draw out or lengthen in time or (rarely) in space; to continue; to prolong; as, to protract an argument; to protract a war.
2. To put off to a distant time; to delay; to defer; as, to protract a decision or duty. Shak.
3. (Surv.)
Defn: To draw to a scale; to lay down the lines and angles of, with scale and protractor; to plot.