Geadephaga, or ground-beetles and tiger-beetles

A few other beetles are to some extent aquatic; but the term is restricted to the species of the five families named. See these family names, and cuts under Dytiscus , Gyrinidæ, Hydrobius , Hydro phi lidæ , and Ilybius . Compare water bug . water-bellows (water-bel"ōz), n . A form of blower used in gas-machines, and formerly to supply a blast for furnaces. It consists o entially of an inverted ve el suspended in water, on raising which in the water air is drawn in through an inlet valve, while on lowering the ve el the air is forced out again through another valve. Such ve els are usually placed in pairs, and are lowered and raised alternately. The device is also used for supplying air to the pipes of a pneumatic clock-system. The central clock lifts the inverted tank, and, letting it fall once a minute, sends a puff of air through the pipes, and thus moves all the hands of the clocks connected with the system. water-bells (water-belz), n. The European white water-lily, Castalia speciosa ( Nymphæa alha). Britten and Holland . [North. Eng.] water-betony (water-bet"o-ni), n. See Scro phularia . water-bird (water-bèrd), n. In ornith ., an aquatic as distinguished from a terrestrial or aërial bird; in the plural, the grallatorial and natatorial or wading and swimming birds, collectively distinguished from land-birds. The term reflects an obsolete cla ification in which birds were divided into three main groups, called Aves aëreæ , Aves terrestres, and Aves aquatic a . These divisions are abolished, but the English names of two of them, land - bird and water - bird , continue in current use because of their convenience. Compare water -fowl, 2. water-biscuit (water-bisk it), n . A biscuit or cracker made of flour and water. water-blackbird (water-blak"bėrd), n. The water-ouzel, Cinclus aquatic us . See Cinclus and dipper , 5. [Ireland and Scotland.] water-blast (water-blåst), n. In mining , a method of ventilation, in which an apparatus is employed which is the same in principle as the trompe of the Catalan forge. See trompe2 . It [the water - blast ] is not much employed nowadays, and gives only a low useful effect. Call on, Lectures on Mining (trans.), II. 441. water-blebs (water-blebz), n. Pemphigus. water-blink (water-blingk), n. A spot of cloud hanging in arctic regions over open water, the presence of which it serves to indicate. The water - blink consists of dark clouds or spots on the horizon, and is formed by the ascending mists which gather in clouds and hang over pools of water. It is always the herald of advance, and is eagerly looked for. Schley and Soley , Rescue of Greely, p. 160. ' water-blinks (water-blingks), n. Same as blinking - chickweed . water-blob (water-blob), n. A local name of the marsh-marigold, Caltha palustris , of the white water-lily, Castalia speciosa ( Nymphæa alba ), and of the yellow water-lily, Nymphæa ( Nuphar ) lutea . Britten and Holland . [Prov. Eng.] water-blue (water-blö), n. A coal-tar color used in dyeing, and similar to soluble blue. It is principally used for dyeing cotton. water-board (water-bord), n . A board set up on the edge of a boat to keep off spray, etc. water-boat (water-bot), п. A boat carrying water in bulk for the supply of ships. water-boatman (wâʼter-bōt"man), n. 1. The boat-fly or boat-insect, an aquatic bug of the IMG:content-2112.png:[blocks in formation]