*bw*

n. biological warfare; the use of bacteria or viruses or toxins to destroy men and animals or food.
Syn. -- biological warfare. [ WordNet 1.5 ]

n. a boiling water reactor; a type of nuclear reactor that uses water as a coolant and moderator; -- the steam produced can drive a steam turbine and produce electrical power.
Syn. -- boiling water reactor. [ WordNet 1.5 ]

n. [ Cob clay mixed with straw + wall. ] A wall made of clay mixed with straw. [ 1913 Webster ]

n. [ Cob a spider + web. ] 1. The network spread by a spider to catch its prey. [ 1913 Webster ]

2. A snare of insidious meshes designed to catch the ignorant and unwary. [ 1913 Webster ]

I can not but lament thy splendid wit
Entangled in the cobwebs of the schools. Cowper. [ 1913 Webster ]

3. That which is thin and unsubstantial, or flimsy and worthless; rubbish. [ 1913 Webster ]

The dust and cobwebs of that uncivil age. Sir P. Sidney. [ 1913 Webster ]

4. (Zool.) The European spotted flycatcher. [ 1913 Webster ]

Cobweb lawn, a fine linen, mentioned in 1640 as being in pieces of fifteen yards. Beck. Draper's Dict. [ 1913 Webster ] Such a proud piece of cobweb lawn. Beau. & Fl. --
Cobweb micrometer, a micrometer in which threads of cobweb are substituted for wires. [ 1913 Webster ]

a. Abounding in cobwebs. “The cobwebbed cottage.” Young. [ 1913 Webster ]

a. Abounding in cobwebs, or any fine web; resembling a cobweb. [ 1913 Webster ]

a. Built of logs, etc., laid horizontally, with the ends dovetailed together at the corners, as in a log house; in marine work, often surrounding a central space filled with stones; as, a cobwork dock or breakwater. [ 1913 Webster ]

n. (Zool.) The larva of any moth of the genus Hyphantria, which spins a web around the foliage on which it feeds. [ PJC ]

n. (Zool.) See Grub, n., 1. [ 1913 Webster ]

And gnats and grubworms crowded on his view. C. Smart. [ 1913 Webster ]

n. (Zool.) The lugworm. [ 1913 Webster ]

prop. n. pl. See Chippeways. [ 1913 Webster ]

prop. n. pl.; sing. Ojibway. (Ethnol.) Same as Chippeways. [ 1913 Webster ]

n. (Bot.) A species of plantain (Plantago lanceolata) with long, narrow, ribbed leaves; -- called also rib grass, ripple grass, ribwort plantain. [ 1913 Webster ]

n. (Bot.) Elecampane. [ 1913 Webster ]

n. 1. An underground way or gallery; especially, a passage under a street, in which water mains, gas mains, telegraph wires, etc., are conducted. [ 1913 Webster ]

2. An underground railroad, usually having trains powered by electricity provided by an electric line running through the underground tunnel. It is usually confined to the center portion of cities; -- called also tube, and in Britain, underground. In certain other countries (as in France or Russia) it is called the metro. [ PJC ]

n. A subordinate worker or helper. South. [ 1913 Webster ]