water snail (watersnal)

1. An aquatic pulmonate gastropod; a pond-snail, as a limneid, or one of many similar snails. See cuts under Limnæa and Limnæidæ.-2. The Arch i me dean screw. [Rare.] 6847 water-speedwell (water-spēd"wel), n. See speedwell. water-spider (wâ'tėr-spider), n. 1. A spider of the family Dra idæ, Argyroneta aquatic a, which makes a bag of silk on water-plants, and lives in it under water as in a diving-bell, the opening being below, so that the air cannot escape. It is filled by the spider, which brings down bubbles of air one at a time. See diving spider, and cut under Argyroneta.-2. Any one of certain spiders of the lycosid genus Dolo medes, as D. tene bros us, D. urinator, or D. sex punctatus, which build nests of leaves and twigs on overhanging rushes, just at the surface of the water in shallow streams; a raft spider. The spiders construct their cocoons and live in these nests. They run rapidly over and dive beneath the surface of the water, where they can remain for some time. 3. A water-mite or water-tick.-4. A bug of the genus Hydrometra; a water-measurer. En cyc. Dict.