1. [n]  an offspring of genetically dissimilar parents or stock; especially offspring produced by breeding plants or animals of different varieties or breeds or species
2. [n]  a composite of mixed origin; "the vice-presidency is a hybrid of administrative and legislative offices"
3. [n]  a word that is composed of parts from different languages (e.g., `monolingual' has a Greek prefix and a Latin root)
4. [adj]  produced by crossbreeding

1. \Hy"brid\, n. [L. hybrida, hibrida, prob. allied to Gr. ?
   wantonness (as if unbridled, lawless, unnatural), perh. akin
   to Gr. "ype`r over, E. over: cf. F. hybride.] (Biol.)
   The offspring of the union of two distinct species; an animal
   or plant produced from the mixture of two species. See
   {Mongrel}.
   

2. \Hy"brid\, a.
   Produced from the mixture of two species; as, plants of
   hybrid nature.
   

3. \Hy"brid\, n. (Philol.)
   A word composed of elements which belong to different
   languages.
   

A concurrent object-oriented language.

["Active Objects in Hybrid", O.M. Nierstrasz, SIGPLAN Notices 22(12):243-253 (OOPSLA '87) (Dec 1987)].

1. The offspring of two parents differing in at least one genetic characteristic (trait). Also, a heteroduplex DNA or DNA-RNA molecule.
2. The offspring of genetically different parents.
3. the result of a cross or mating between two different kinds of parents.