Defn: A hydrous carbonate of nickel occurring as an emerald-green incrustation on chromite; — called also emerald nickel.

ZAREBA
Za*re"ba, n. (Mil.)

Defn: An improvised stockade; especially, one made of thorn bushes, etc. [Written also zareeba, and zeriba.] [Egypt] "Ah," he moralizes, "what wonderful instinct on the part of this little creature to surround itself with a zareba like the troops after Osman Digma." R. Jefferies.

ZARF
Zarf, n. [Ar.] (Art)

Defn: A metallic cuplike stand used for holding a finjan.

ZARNICH
Zar"nich, n. Etym: [F., fr. Ar. az-zernikh, fr. Gr. Arsenic.] (Min.)

Defn: Native sulphide of arsenic, including sandarach, or realgar, and orpiment.

ZARTHE; ZAERTHE
Zär"the, n. (Zoöl.)

Defn: A European bream (Abramis vimba). [Written also zaerthe.]

ZASTRUGI Zas*tru"gi, n. pl.; sing. -ga (#). [Russ. zastruga furrow made on the shore by water.]