Origin: cf. Dan. Bollebaer bilberry, where bolle is perh. Akin to E. Ball.
1. (Science: botany) The European whortleberry (vaccinium myrtillus); also, its edible bluish black fruit. There pinch the maids as blue as bilberry. (Shak)
2. (Science: botany) Any similar plant or its fruit; especially, in America, the species vaccinium myrtilloides, v. Caespitosum and v. Uliginosum.