GASSY
Gas"sy, a.

Defn: Full of gas; like gas. Hence: [Colloq.] Inflated; full of boastful or insincere talk.

GAST Gast, v. t. Etym: [OE. gasten, g to frighten, akin to Goth. usgaisjan. See Aghast, Ghastly, and cf. Gaze.]

Defn: To make aghast; to frighten; to terrify. See Aghast. [Obs.]
Chaucer. Shak.

GASTER
Gast"er, v. t.

Defn: To gast. [Obs.] Beau. & Fl.

GASTEROMYCETES
Gas`te*ro*my*ce"tes, n. pl. Etym: [NL., from Gr. (Bot.)

Defn: An order of fungi, in which the spores are borne inside a sac called the peridium, as in the puffballs.

GASTEROPOD
Gas"ter*o*pod, n. (Zoöl.)

Defn: Same as Gastropod.