Lim naea Lim *n[ae]"a (l[i^]m*n[=e]"[.a]), n. [NL., fr. Gr. limnai^os pertaining to a marsh, fr. li`mh a marsh.] (Zo["o]l.) A genus of fresh-water air-breathing mollusks, abundant in ponds and streams; -- called also pond snail. [Written also Lymn[ae]a.]
Snail Snail (sn[=a]l), n. [OE. snaile, AS. sn[ae]gel, snegel, sn[ae]gl; akin to G. schnecke, OHG. snecko, Dan. snegl, Icel. snigill.] 1. (Zo["o]l.) (a) Any one of numerous species of terrestrial air-breathing gastropods belonging to the genus Helix and many allied genera of the family Helicid[ae]. They are abundant in nearly all parts of the world except the arctic regions, and feed almost entirely on vegetation; a land snail. (b) Any gastropod having a general resemblance to the true snails, including fresh-water and marine species. See Pond snail, under Pond, and Sea snail. 2. Hence, a drone; a slow-moving person or thing. 3. (Mech.) A spiral cam, or a flat piece of metal of spirally curved outline, used for giving motion to, or changing the position of, another part, as the hammer tail of a striking clock. 4. A tortoise; in ancient warfare, a movable roof or shed to protect besiegers; a testudo. [Obs.] They had also all manner of gynes [engines] . . . that needful is [in] taking or sieging of castle or of city, as snails, that was naught else but hollow pavises and targets, under the which men, when they fought, were heled [protected], . . . as the snail is in his house; therefore they cleped them snails. --Vegetius (Trans.). 5. (Bot.) The pod of the sanil clover. Ear snail, Edible snail, Pond snail, etc. See under Ear, Edible, etc. Snail borer (Zo["o]l.), a boring univalve mollusk; a drill. Snail clover (Bot.), a cloverlike plant (Medicago scuttellata, also, M. Helix); -- so named from its pods, which resemble the shells of snails; -- called also snail trefoil, snail medic, and beehive. Snail flower (Bot.), a leguminous plant (Phaseolus Caracalla) having the keel of the carolla spirally coiled like a snail shell. Snail shell (Zo["o]l.), the shell of snail. Snail trefoil. (Bot.) See Snail clover, above.
Pond Pond, n. [Probably originally, an inclosed body of water, and the same word as pound. See Pound an inclosure.] A body of water, naturally or artificially confined, and usually of less extent than a lake. ``Through pond or pool.'' --Milton. Pond hen (Zo["o]l.), the American coot. See Coot (a) . Pond lily (Bot.), the water lily. See under Water, and Illust. under Nymph[ae]a. Pond snail (Zo["o]l.), any gastropod living in fresh-water ponds or lakes. The most common kinds are air-breathing snails (Pulmonifera) belonging to Limn[ae]a, Physa, Planorbis, and allied genera. The operculated species are pectinibranchs, belonging to Melantho, Valvata, and various other genera.