sinapis

[Lat. sinapi, sinapis, from Greek sinapi, sinapy, sinēpi, sinēpy =mustard.] 1. Botany : Formerly a genus of Bra i cide, now reduced by Sir J. Hooker to a sub-genus of Bra ica, characterized by spreading sepals. Four most familiar are Bra ica nigra , Black B. adpre a or in can a , Floury Mustard; B. sin api strum , Charlock; and B. alba , White Mustard. They are widespread in temperate regions. 2. Pharm .: [MUSTARD, 3.] ( Chem .).]