Definition of "mustard-seed" [mustard-seed]

• The seed of mustard. (noun)
• A very fine kind of shot used by ornithologists and taxidermists for shooting birds with least injury to the plumage; dust-shot. The name includes No. 10 shot and finer numbers. (noun)

The Century Dictionary (Public Domain)

• "Maybe it was Etta James 's "At Last," maybe it was "Up a Lazy River" or some other vintage tune, but there was not a single guy or doll still sitting in his or her seat, hunched over the jumbo lump crab salad with mustard-seed caviar and brown butter cashews."
• "The “Muhit” tells us that is a tree parcel yellow and red growing in parts of India and China, its leaf is that of the Tamarisk (Tarfá); its flower is coloured red, yellow and white; it bears a grain like mustard-seed (Khardal) and of its wood they make porringers."
• "Sinapismus are invented by plasters to raise blisters, and eating medicines of pitch, mustard-seed, and the like."