Definition of Arabidopsis
: a small genus of annual or biennial herbs (family Brassicaceae) of north temperate regions with basal rosettes of petioled leaves, cauline leaves short-petioled or clasping, and flowers having white, purplish, or sometimes yellow petals — see mouse-ear cress
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Origin and Etymology of arabidopsis
New Latin, from Arabid-, Arabis + -opsis
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