| water bear | <zoology> Any species of Tardigrada. Source: Websters Dictionary (01 Mar 1998) |
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| water-bearer | <astronomy> The constellation Aquarius. Source: Websters Dictionary (01 Mar 1998) |
| water bed | A mattress in the form of a closed rubber bag filled with water; used to prevent or treat pressure sores by equalizing the distribution of the patient's weight against the support. (05 Mar 2000) |
| water beech | <botany> The American hornbeam. See Hornbeam. Source: Websters Dictionary (01 Mar 1998) |
| water beetle | <zoology> Any one of numerous species of aquatic beetles belonging to Dytiscus and allied genera of the family Dytiscidae, and to various genera of the family Hydrophilidae. These beetles swim with great agility, the fringed hind legs acting together like oars. Source: Websters Dictionary (01 Mar 1998) |
| water bird | <zoology> Any aquatic bird; a water fowl. Source: Websters Dictionary (01 Mar 1998) |
| water blackbird | <zoology> The European water ousel, or dipper. Source: Websters Dictionary (01 Mar 1998) |
| water boatman | <zoology> A boat bug. Source: Websters Dictionary (01 Mar 1998) |
| water brain | A disease of sheep; gid. Source: Websters Dictionary (01 Mar 1998) |
| water brash | <medicine> See Brash. Source: Websters Dictionary (01 Mar 1998) |
| water breather | <zoology> Any arthropod that breathes by means of gills. Source: Websters Dictionary (01 Mar 1998) |
| water buck | <zoology> A large, heavy antelope (Kobus ellipsiprymnus) native of Central Africa. It frequents the banks of rivers and is a good swimmer. It has a white ring around the rump. Called also photomok, water antelope, and waterbok. The name is also applied to other related species, as the leche (Kobus leche), which has similar habits. Source: Websters Dictionary (01 Mar 1998) |
| water buffalo | <zoology> The European buffalo. Source: Websters Dictionary (01 Mar 1998) |
| water bug | <zoology> The Croton bug. Any one of numerous species of large, rapacious, aquatic, hemipterous insects belonging to Belostoma, Benacus, Zaitha, and other genera of the family Belostomatidae. Their hind legs are long and fringed, and act like oars. Some of these insects are of great size, being among the largest existing Hemiptera. Many of them come out of the water and fly about at night. Source: Websters Dictionary (01 Mar 1998) |
| water caltrop | <botany> The water chestnut. Source: Websters Dictionary (01 Mar 1998) |