from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The 26th letter of the modern English alphabet.
- n. Any of the speech sounds represented by the letter z.
- n. The 26th in a series.
- n. Something shaped like the letter Z.
- n. Slang Sleep.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The twenty-sixth letter of the basic modern Latin alphabet.
- n. Symbol for the prefix zepto-.
- n. Symbol for the redshift.
- n. Used to denote a real variable when x and y are already in use.
- n. Used to denote the third coordinate in three-dimensional Cartesian and cylindrical coordinate systems.
- n. Used to denote a complex variable.
- n. Used to denote a value of a standard normal random variable.
- n. Quantity along the third axis in a three-dimensional system, vertical when applicable.
- n. Symbol for atomic number.
- n. voiced alveolar fricative
- n. The twenty-sixth letter of the English alphabet, called zed or zee and written in the Latin script.
from the GNU version of the Collaborative International Dictionary of English
- Z, the twenty-sixth and last letter of the English alphabet, is a vocal consonant. It is taken from the Latin letter Z, which came from the Greek alphabet, this having it from a Semitic source. The ultimate origin is probably Egyptian. Etymologically, it is most closely related to s, y, and j; as in glass, glaze; E. yoke, Gr. �, L. yugum; E. zealous, jealous. See Guide to Pronunciation, §§ 273, 274.
from The Century Dictionary and Cyclopedia
- n. In astronomy, an abbreviation of Zonæ Cordobenses, Gould's Cordova Zones. See C. Z.
- n. An abbreviation of Zoölogical Garden or Gardens.
- The twenty-sixth character in the English alphabet, and the last, as in that of the later Romans.
- As a symbol, in mathematics:
- [lowercase] In algebra, the third variable or unknown quantity.
- [lowercase] In analytical geometry, one of the system of point-coördinates in space.
- In mechanics, the component of a force in the direction of the axis of z.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the ending of a series or sequence
- n. the 26th letter of the Roman alphabet
Sorry, no etymologies found.