Defn: In an infernal manner; diabolically. "Infernally false." Bp.
Hacket.

INFERNO
In*fer"no, n. [It. See Infernal.]

Defn: The infernal regions; hell. Also used fig.

At each sudden explosion in the inferno below they sprang back from the brink [of the volcanic crater]. D. C. Worcester.

INFEROBRANCHIAN
In`fe*ro*bran"chi*an, n. (Zoöl.)

Defn: One of the Inferobranchiata.

INFEROBRANCHIATA
In`fe*ro*bran`chi*a"ta, n. pl. Etym: [NL. See Inferobranchiate.]
(Zoöl.)

Defn: A suborder of marine gastropod mollusks, in which the gills are between the foot and the mantle.

INFEROBRANCHIATE
In`fe*ro*bran"chi*ate, a. Etym: [L. inferus lower + E. branchiate.]
(Zoöl.)

Defn: Having the gills on the sides of the body, under the margin of the mantle; belonging to the Inferobranchiata.