'Bird pepper' definitions:

Definition of 'bird pepper'

(from WordNet)
noun
Plant bearing very small and very hot oblong red fruits; includes wild forms native to tropical America; thought to be ancestral to the sweet pepper and many hot peppers [syn: bird pepper, Capsicum frutescens baccatum, Capsicum baccatum]

Definition of 'Bird pepper'

From: GCIDE
  • Bird pepper \Bird" pep`per\ A species of capsicum (Capsicum baccatum), whose small, conical, coral-red fruit is among the most piquant of all red peppers. [1913 Webster]