The Collaborative International Dictionary of English v.0.48:
biota \bi*o"ta\ n. (b[imac]*[=o]"t[.a]), all the plant and animal life of a particular region. Syn: biology. [WordNet 1.5]WordNet (r) 3.0 (2006):
biota n 1: all the plant and animal life of a particular region [syn: biota, biology]