a. The common name of the species of Trefoil ( Trifolium, family Leguminosæ), esp. T. repens and T. pratense, both largely cultivated for fodder.
b. With qualifying words, indicating the different species: esp. clustered clover n. Trifolium glomeratum. red clover n. (or meadow clover) ( broad clover clover-grass n.), Trifolium pratense, and white clover n. (or Dutch clover) T. repens. Also alsike clover, T. hybridum; cow clover, T. medium and T. pratense; crimson clover or carnation clover, T. incarnatum; hare's-foot clover, Trifolium arvense; hop clover, T. procumbens; strawberry clover, T. fragiferum; trefoil clover or zig-zag clover, T. medium; yellow clover, T. procumbens and T. minus.
2. Applied in different localities, with qualifying word prefixed, to many plants of the same order, or with similar characters; as bird's-foot clover, cat's clover, Lotus corniculatus; Calvary clover, Medicago Echinus; heart clover, spotted clover, Medicago maculata; yellow clover, Medicago lupulina; horned clover, snail clover, species of Medicago; Bokhara clover, Melilotus vulgaris; garden clover, Melilotus cærulea; hart's clover, king's clover, plaister clover, Melilotus officinalis; marsh clover, Menyanthes trifoliata; cuckoo's clover, gowk's clover, lady's clover, sour clover, Oxalis acetosella; thousand-leaved clover, Achillea Millefolium; Soola clover or Maltese clover, Hedysarum coronarium. Also in U.S.: bush clover, Lespedeza; prairie clover, Petalostemon; sweet clover, Melilotus.
3. Phrase. to live (or be) in clover : ‘to live luxuriously; clover being extremely delicious and fattening to cattle’ (Johnson).
clover-dodder n. Cuscuta Trifolii.
clover-eater n. U.S. (see quot.)
clover-fern n. Austral. nardoo.
clover-hay worm n. the larva of a small moth, Asopia costalis, very destructive to clover-hay in North America.
clover honey n. that gathered from clover flowers.
clover-huller n. a machine for separating clover-seed from the hulls.
clover-leaf n. (a) a leaf of clover; (b) a system of intersecting roads from different levels, in form resembling the leaf of clover; frequently attrib.
clover-leaf sight n. (see quot.).
clover-ley n. (also clover-lay) (see quots.).
clover-sheller n. = clover-huller n. above.
clover-sick adj. (of land) that has been too continuously kept under clover and that will no longer grow or support it.
clover summer n. fig. an exceptional time.
clover tea n. (see quot.)
clover-thrasher n. = clover-huller n. above.
clover-tree n. a Tasmanian tree, Goodenia latifolia.
clover-weevil n. a small weevil, Apion apricans, which feeds on the seeds of clover.
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