1. A half circle; a semicircle.

2. A semicircular place, as a semicircular arena, or room, or part of a room. The collections will be displayed in the hemicycle of the central pavilion. London Academy.

HEMIDACTYL
Hem`i*dac"tyl, n. Etym: [See Hemi-, and Dactyl.] (Zoöl.)

Defn: Any species of Old World geckoes of the genus Hemidactylus. The hemidactyls have dilated toes, with two rows of plates beneath.

HEMI-DEMI-SEMIQUAVER
Hem`i-dem`i-sem"i*quaver, n. Etym: [Hemi- + demi-semiquaver.] (Mus.)

Defn: A short note, equal to one fourth of a semiquaver, or the sixty-fourth part of a whole note.

HEMIDITONE
Hem`i*di"tone, n. Etym: [Hemi- + ditone.] (Gr. Mus.)

Defn: The lesser third. Busby.

HEMIGAMOUS
He*mig"a*mous, a. Etym: [Hemi- + Gr. (Bot.)

Defn: Having one of the two florets in the same spikelet neuter, and the other unisexual, whether male or female; — said of grasses.