a. Bot. [f. TRI- + med.L. foliolum leaflet, dim. of L. folium leaf: see -ATE2.] Consisting of three leaflets, or having leaves of this form; trifoliate. (Abbrev. 3-foliolate.)

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1828.  in Webster.

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1868.  Lossing, Hudson, 35. The bright trifoliolate oxalis, or wood-sorrel.

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1870.  Hooker, Stud. Flora, 242. Leaves alternate 3-foliolate.

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