(a) The outside covering of nuts, and certain fruits; (b) the cup of an acorn; (c) husk or chaff of grain; (d) a cocoon; (e) the carapace of a beetle.
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(a) A knot, a knob; (b) a knot in a tree; (c) a bulge, a convexity; a swelling; a hump; (d) a lump in the skin or flesh; (e) thickened and hardened skin, a callus; also, the bark of a tree.
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