Definition of: mimosa

(mi·mō′sə, -zə) noun
1. Any plant of a large genus (Mimosa) of tropical herbs, shrubs, or trees of the bean family, with feathery, bipinnate foliage, and clusters of small flowers; especially, the sensitive plant.
2. A light yellow: the color of certain varieties of mimosa. [<NL <L mimus mime; from its supposed mimicry of animal life]
—mim·o·sa·ceous (mim′ō·sā′shəs, mī′mō-) adjective