| leptiform | <zoology> Having a form somewhat like leptus; said of active insect larvae having three pairs of legs. See Larva. Origin: Leptus. Source: Websters Dictionary (01 Mar 1998) |
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| leptin | <protein> Product (16 kD) of the ob (obesity) locus. Found in plasma of mouse and man: reduces food uptake and increases energy expenditure. (18 Nov 1997) |