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n. 1. (Biol.) a group of organisms derived from a single individual by some kind of asexual reproduction; -- used mostly of microorganisms such as bacteria and yeast.
Syn. -- clon. [ WordNet 1.5 ]

2. (Biol.) an individual organism containing a genetic complement identical to that of another organism, produced by using the genetic material from the second animal in a non-sexual reproduction process. [ PJC ]

3. something virtually identical to another object. [ PJC ]

v. t. 1. (Biol.) to make a clone from; to make identical copies of an organism by a non-sexual process of reproduction. [ WordNet 1.5 ]

2. (Microbiol.) to grow colonies of a microorganism by spreading a suspension of the microorganism onto a solid growth medium (such as in a Petri dish), at a concentration such that individual colonies will grow from single cells sufficiently well separated from other colonies so that pure cultures derived from a single organism can be isolated. [ WordNet 1.5 ]

3. (Biochem.) to make large quantities of a segment of DNA by inserting it, using biochemical techniques, into the DNA of a microorganism, and growing that microorganism in large numbers; as, to clone the gene for growth hormone. [ PJC ]

n. [ Gr.&unr_;&unr_;&unr_;&unr_;&unr_; moving in a circle, p. pr. of &unr_;&unr_;&unr_;&unr_;&unr_;, fr. ky`klos circle. ] 1. (Meteor.) A violent storm, often of vast extent, characterized by high winds rotating about a calm center of low atmospheric pressure. This center moves onward, often with a velocity of twenty or thirty miles an hour. [ 1913 Webster ]

☞ The atmospheric disturbance usually accompanying a cyclone, marked by an onward moving area of high pressure, is called an anticyclone. [ 1913 Webster ]

2. (Meteor.) In general, a condition of the atmosphere characterized by a central area of pressure much lower than that of surrounding areas, and a system of winds blowing inward and around (clockwise in the southern hemisphere and counter-clockwise in the northern); -- called also a low-area storm. It is attended by high temperature, moist air, abundant precipitation, and clouded sky. The term includes the hurricane, typhoon, and tropical storms; it should not be applied to the moderate disturbances attending ordinary areas of low pressure nor to tornadoes, waterspouts, or “twisters, ” in which the vertical motion is more important than the horizontal. [ Webster 1913 Suppl. ]

3. A tornado. See above, and Tornado. [ Middle U. S. ] [ Webster 1913 Suppl. ]