Black"-jack`, n.

1. Min.

A name given by English miners to sphalerite, or zinc blende; -- called also false galena. See Blende.


Caramel or burnt sugar, used to color wines, spirits, ground coffee, etc.


A large leather vessel for beer, etc.


4. Bot.

The Quercus nigra, or barren oak.


The ensign of a pirate.


© Webster 1913.

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