NYSTAGMTJS, an involuntary move ment of the eyeball due to clonic spasm of the muscles of the globe. It usually affects both eyes. The movement is usually horizontal, i. e., from side to side, but it may be rotary.
0, o, the 15th letter, and the 4th vowel of the English alphabet. 0 is called the labial vowel. In English o has six dis tinct sounds. (1) The sound of o in not, as in pot. (2) The same sound length ened by a following r, as in or; and in the digraph ou, as in fought, sought. (3) The sound of o in go; and in the digraphs oe, as in foe, toe; oa, as in groan, moan, boat; and ou in though. This sound is modified by r following the vowel, as in more. (4) The sound of o in who, move, tomb; and in the di graphs oo, as in room, soon; and ou, as in through, wound. (5) The sound of u in bull or full, as in wolf, woman. (6) The sound of u in tub, as in son, love, come; and in the digraphs oe, as in does; oo, as in blood; ou, as in enough, tough.
0 as a symbol is used: As a numeral: As the symbol of noth ing, or a cipher.
In chemistry for the element oxygen. In old music as the sign of tempts pert ectum, or triple time.
0, plural OES, an exclamation used in earnest or solemn address, entreaty, appeal, or invocation, and prefixed to the noun of address.
0', in Irish proper names, a patronymic prefix corresponding to the Mac of the Highlands of Scotland; thus O'Connell means "the son of Connell." OAHU (wg.'hii), one of the Hawaiian Islands, between Molokai and Kawai, the most important island of the archipel ago, on which is the capital Honolulu; length 37 miles; greatest breadth 25 miles; area, 600 square miles. It is crossed by two mountain chains running parallel N. W. to S. E., between which is a large dry plain now only useful as pasture land; formerly, when irrigated, more fertile. Highest point Kaala, alti tude 3,890 feet.