'Mesembryanthemum' definitions:
Definition of 'Mesembryanthemum'
(from WordNet)
noun
South African annual or biennial plants having flowers that open only in bright sunlight [syn: Mesembryanthemum, genus Mesembryanthemum]
Definition of 'Mesembryanthemum'
From: GCIDE
- Mesembryanthemum \Me*sem`bry*an"the*mum\, n. [NL., fr. Gr. meshmbri`a midday + 'a`nqos flower.] (Bot.) A genus of herbaceous or suffruticose plants, chiefly natives of South Africa. The leaves are opposite, thick, and fleshy. The flowers usually open about midday, whence the name. [1913 Webster]