On·o·ce·rin n. Chem. A white crystalline waxy substance extracted from the root of the leguminous plant Ononis spinosa.
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Cam·mock n. Bot. A plant having long hard, crooked roots, the Ononis spinosa; -- called also rest-harrow. The Scandix Pecten-Veneris is also called cammock.
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Ononis spinosa
n : Eurasian plant having loose racemes of pink or purple
flowers and spiny stems and tough roots [syn: restharrow,
rest-harrow]