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charlock n. 野芥子 野芥子 charlock n 1: weedy Eurasian plant often a pest in grain fields [ synonym: { field mustard}, { wild mustard}, { charlock}, { chadlock}, { Brassica kaber}, { Sinapis arvensis}] Harlock \ Har" lock\ ( h[ aum] r" l[ o^] k), n. Probably a corruption either of { charlock} or { hardock}. -- Drayton. [ 1913 Webster]
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]
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