{ n., . [ Said to be named from the Spanish princess Isabella, daughter of king Philip II., in allusion to the color assumed by her shift, which she wore without change from 1601 to 1604, in consequence of a vow made by her. ] A brownish yellow color. [ 1913 Webster ]

(Bot.) A favorite sweet American grape of a purple color. See Fox grape, under Fox. [ 1913 Webster ]

(Zool.) A common American moth (Pyrrharctia isabella), of an isabella color. The larva, called woolly bear and hedgehog caterpillar, is densely covered with hairs, which are black at each end of the body, and red in the middle part. [ 1913 Webster ]