A crocodile, Crocodylus palustris

(uncountable, grammar) A grammatical mood that expresses (surprise at) unexpected revelations or new information. / (countable, grammar) (An instance of) a form of a word which conveys this mood.

Abbreviation of Bel and the Dragon.

A group of one or more species derived from a sequential development pattern which involves continual and uniform changes from an extinct ancestral form on an evolutionary scale.