GYREFUL
Gyre"ful, a.

Defn: Abounding in gyres. [Obs.]

GYRENCEPHALA
Gyr"en*ceph`a*la, n. pl. Etym: [NL. fr. Gr. (Zoöl.)

Defn: The higher orders of Mammalia, in which the cerebrum is
convoluted.
— Gyr"en*ceph"a*lous, a.

GYRFALCON Gyr"fal`con, n. Etym: [OE. gerfaucon, OF. gerfaucon, LL. gyrofalco, perh. fr. L. gyrus circle + falco falcon, and named from its circling flight; or cf. E. gier-eagle. See Gyre, n., Falcon.] (Zoöl.)

Defn: One of several species and varieties of large Arctic falcons, esp. Falco rusticolus and the white species F. Islandicus, both of which are circumpolar. The black and the gray are varieties of the former. See Illust. of Accipiter. [Written also gerfalcon, gierfalcon, and jerfalcon.]

GYRI
Gy"ri, n. pl.

Defn: See Gyrus.

GYRLAND
Gyr"land, v. t. Etym: [See Garland.]

Defn: To garland. [Obs.]