PITTER-PATTER
Pit"ter-pat`ter, adv.

Defn: With, or with the sound of, alternating light beats; as, his heart went pitter-patter.

PITTLE-PATTLE
Pit"tle-pat`tle, v. i.

Defn: To talk unmeaningly; to chatter or prattle. [R.] Latimer.

PITUITARY Pi*tu"i*ta*ry, a. Etym: [L. pituita phlegm, pituite: cf. F. pituitarie.] (Anat.) (a) Secreting mucus or phlegm; as, the pituitary membrane, or the mucous membrane which lines the nasal cavities. (b) Of or pertaining to the pituitary body; as, the pituitary fossa. Pituitary body or gland (Anat.), a glandlike body of unknown function, situated in the pituitary fossa, and connected with the infundibulum of the brain; the hypophysis. — Pituitary fossa (Anat.), the ephippium.

PITUITE Pit"u*ite, n. Etym: [L. pituita: cf. F. pituite. Cf. Pip a disease of fowls.]

Defn: Mucus, phlegm.

PITUITOUS
Pi*tu"i*tous, a. Etym: [L. pituitosus: cf. F. pituiteux.]

Defn: Consisting of, or resembling, pituite or mucus; full of mucus; discharging mucus. Pituitous fever (Med.), typhoid fever; enteric fever.

PITUITRIN
Pi*tu"i*trin, n. (Biol. Chem.)