Defn: Blackness; the state of being black. Lamb.

NIGROMANCIE
Nig"ro*man`cie, n.

Defn: Necromancy. [Obs.]

NIGROMANCIEN
Nig"ro*man`cien, n.

Defn: A necromancer. [Obs.]
These false enchanters or nigromanciens. Chaucer.

NIGROSINE
Ni"gro*sine ( or ), n. Etym: [From L. niger black.] (Chem.)

Defn: A dark blue dyestuff, of the induline group; — called also azodiphenyl blue.

NIGUA
Ni"gua, n. Etym: [Sp.] (Zoöl.)

Defn: The chigoe.

NIHIL
Ni"hil, n. Etym: [L.]