Random Image for xscid
Image originally shown at http://www.genome.gov/DIR/GMBB/SCID/xscid_mutations.gif
Image for xscid
Possible definitions for xscid
acid
Any substance that in water solution tastes sour, changes the color of acid-base indicators (e.g., litmus), reacts with some metals (e.g., iron) to yield hydrogen gas, reacts with bases to form salts, and promotes certain chemical reactions (e.g., acid catalysis). Acids contain one or more hydrogen atoms that, in solution, dissociate as positively charged hydrogen ions. Inorganic, or mineral, acids include sulfuric acid, nitric acid, hydrochloric acid, and phosphoric acid. Organic acids include carboxylic acids, phenols, and sulfonic acids. Broader definitions of acids cover situations in which water is not present. See also acid-base theory.
ASCII
Standard data-transmission code used to represent both text (letters, numbers, punctuation marks) and noninput device commands (control characters). It converts information into standardized digital formats that allow computers to communicate with each other and to process and store data efficiently. Standard ASCII uses groups of seven-digit bits, and can represent 128 characters. Extended ASCII, which uses an 8-bit encoding system, can represent 256 characters, incl. many useful characters not available in standard ASCII, such as letters with accents. Extended ASCII is the industrywide standard for encoding text on personal computers. See also EBCDIC, Unicode.
Cid
Castilian military hero. Brought up at the court of Ferdinand I, he served the king's eldest son, Sancho II, in his campaign to gain control of Leó n. On Sancho's death he shifted to the service of Alfonso VI. His unauthorized raid on the Moorish kingdom of Toledo (1081) prompted Alfonso to send him into exile. He then entered the service of the Muslim rulers of Saragossa, becoming known as a general who was never defeated in battle. Alfonso tried unsuccessfully to win him back during the Almoravid invasion of Spain. The Cid maneuvered to gain control of the Moorish kingdom of Valencia, finally succeeding in 1094. He is the national hero of Castile, celebrated in a famous 12th-cent. epic poem.
NSAIDs
Drugs that reduce inflammation and are neither steroids nor opioids (natural and synthetic opiates). They are also effective against pain (see analgesic) and fever. Most are available with or without prescription and are usually used for short periods for mild pain. Aspirin is technically an NSAID, but the term is generally applied to a newer class of drugs, incl. ibuprofen and similar drugs (e.g., naproxen, ketoprofen) that, like aspirin, inhibit prostaglandin synthesis. They act with fewer side effects, but aspirin-sensitive people should not use them.
Said
Palestinian-U.S. literary critic. Said's family left Palestine for Egypt in 1948, and he later studied at Princeton and Harvard universities. He has taught at Columbia Univ. since 1963. In Orientalism (1978), perhaps his best-known work, he examines Western stereotypes of the Islamic world ...
Top words beginning with X: xylocopid, xeruses, xerography, xanthogen, xylulokinase, xenia, xanthocephalum, xenagogy, xanthoxenite, xanthelasmoidea, xenosaurus, xanthocobaltic, xylans, xiphoidian, xxyy, xylenes, xyloplastic, xiphister, xenisma, xanthomata
Browse the alphabet: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z