Definition of Wolffia
: a genus of widely distributed floating aquatic plants (family Lemnaceae) that are the smallest flowering plants known, consist merely of a minute ovoid or globose leafless thallus producing the flowers from clefts or grooves, and are distinguished from members of the genus Lemna by the one-celled anthers and by the absence of roots
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Origin and Etymology of wolffia
New Latin, from Johann F. Wolff †1806 German physician and botanist + New Latin -ia
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