From The Collaborative International Dictionary of English v.0.48 [gcide]:
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.
[1913 Webster]
Pond hen (Zool.), the American coot. See Coot
(a) .
Pond lily (Bot.), the water lily. See under Water, and
Illust. under {Nymph[ae]a}.
Pond snail (Zool.), 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.
Pond spice (Bot.), an American shrub ({Tetranthera
geniculata}) of the Laurel family, with small oval leaves,
and axillary clusters of little yellow flowers. The whole
plant is spicy. It grows in ponds and swamps from Virginia
to Florida.
Pond tortoise, Pond turtle (Zool.), any freshwater
tortoise of the family {Emydid[ae]}. Numerous species are
found in North America.
[1913 Webster]
From WordNet (r) 3.0 (2006) [wn]:
pond lily
n 1: a water lily having large leaves and showy fragrant flowers
that float on the water; of temperate and tropical regions
[syn: water nymph, fragrant water lily, pond lily,
Nymphaea odorata]