Defn: Of or pertaining to the prosencephalon.

PROSENCEPHALON Pros`en*ceph"a*lon, n. Etym: [NL., fr. Gr. encephalon.] [Sometimes abbreviated to proen.] (Anat.) (a) The anterior segment of the brain, including the cerebrum and olfactory lobes; the forebrain. (b) The cerebrum. Huxley.

PROSENCHYMA
Pros*en"chy*ma, n. Etym: [NL., fr. Gr. -enchyma, as in parenchyma.]
(Bot.)

Defn: A general term applied to the tissues formed of elongated cells, especially those with pointed or oblique extremities, as the principal cells of ordinary wood.

PROSER
Pros"er, n.

1. A writer of prose. [Obs.]

2. One who talks or writes tediously. Sir W. Scott.

PROSILIENCY
Pro*sil"i*en*cy, n. Etym: [L. prosilere to leap forth.]

Defn: The act of leaping forth or forward; projection. "Such prosiliency of relief." Coleridge.

PROSILY
Pros"i*ly, adv.