Main Entry: be·hav·ior

Variant(s): or chiefly British be·hav·iour \bi-ˈhā-vyər\

Function: noun

1 : the manner of conducting oneself
2 a : anything that an organism does involving action and response to stimulation b : the response of an individual, group, or species to its environment

—be·hav·ior·al or chiefly British be·hav·iour·al \-vyə-rəl\ adjective

—be·hav·ior·al·ly or chiefly British be·hav·iour·al·ly \-rə-lē\ adverb