bacteria having the quality of being able to live or thrive under more than one set of conditions with or without oxygen. Advertisements
pl. algae. Any of a group of chiefly aquatic, non vascular plants such as seaweed, pond scums, stonewarts, with chlorophyll often marked by a brown or red pigment. These plant bodies carry on photosynthesis and are independently able to make their own food.
a colorless, sweet inorganic gas N2O used as an anesthetic. Also call laughing gas.
a slang term for a pipe nipple which is threaded on only one end, the other end is bare. Sometimes a water closet nipple is called a baldy.
capable of being extended, or shaped, by beating with a hammer, or by the pressure of the rollers. Most metals are malleable. The term “malleable iron” also has the older meaning (still universal in Great Britain) of “wrought iron.”
1. loosely twisted hemp, or jute fiber, impregnated with tar, or a tar derivative, and used in caulking seams and packing joints. 2. a ropelike material used in making joints in systems of piping.
a fused lead monoxide. (In plumbing) used as a threaded joint compound when mixed with boiled linseed oil or glycerine.