brassica sinapistrum

2 definitions found

brassica sinapistrum - Collaborative International Dictionary of English v.0.48 :

  Mustard \Mus"tard\, n. [OF. moustarde, F. moutarde, fr. L.
     mustum must, -- mustard was prepared for use by being mixed
     with must. See Must, n.]
     1. (Bot.) The name of several cruciferous plants of the genus
        Brassica (formerly Sinapis), as white mustard
        (Brassica alba), black mustard (Brassica Nigra),
        wild mustard or charlock (Brassica Sinapistrum).
        [1913 Webster]
  
     Note: There are also many herbs of the same family which are
           called mustard, and have more or less of the flavor of
           the true mustard; as, bowyer's mustard (Lepidium ruderale
           ); hedge mustard (Sisymbrium officinale);
           Mithridate mustard (Thlaspi arvense); tower mustard
           (Arabis perfoliata); treacle mustard (Erysimum cheiranthoides
           ).
           [1913 Webster]
  
     2. A powder or a paste made from the seeds of black or white
        mustard, used as a condiment and a rubefacient. Taken
        internally it is stimulant and diuretic, and in large
        doses is emetic.
        [1913 Webster]
  
     Mustard oil (Chem.), a substance obtained from mustard, as
        a transparent, volatile and intensely pungent oil. The
        name is also extended to a number of analogous compounds
        produced either naturally or artificially.
        [1913 Webster]

  Charlock \Char"lock\, n. [AS. cerlic; the latter part perh. fr.
     AS. le['a]c leek. Cf. Hemlock.] (Bot.)
     A cruciferous plant (Brassica sinapistrum) with yellow
     flowers; wild mustard. It is troublesome in grain fields.
     Called also chardock, chardlock, chedlock, and
     kedlock.
     [1913 Webster]
  
     Jointed charlock, White charlock, a troublesome weed
        (Raphanus Raphanistrum) with straw-colored, whitish, or
        purplish flowers, and jointed pods: wild radish.
        [1913 Webster]