WordNet Dictionary- [n] a stimulant drug that is chemically related to mescaline and amphetamine and is used illicitly for its euphoric and hallucinogenic effects; it was formerly used in psychotherapy but in 1985 it was declared illegal in the United States
- [n] the 24th letter of the Roman alphabet
- [n] the cardinal number that is the sum of nine and one; the base of the decimal system
- [adj] being one more than nine
Webster's 1913 Dictionary\X\ ([e^]ks).
X, the twenty-fourth letter of the English alphabet, has
three sounds; a compound nonvocal sound (that of ks), as in
wax; a compound vocal sound (that of gz), as in example; and,
at the beginning of a word, a simple vocal sound (that of z),
as in xanthic. See Guide to Pronunciation, [sect][sect] 217,
270, 271.
Note: The form and value of X are from the Latin X, which is
from the Greek [Chi], which in some Greek alphabets had
the value of ks, though in the one now in common use it
represents an aspirated sound of k.
Computing Dictionary1. Used in various speech and writing contexts (also in lowercase) in roughly its algebraic sense of "unknown within a set defined by context" (compare n). Thus, the abbreviation 680x0 stands for 68000, 68010, 68020, 68030 or 68040, and 80x86 stands for intel 80186, intel 80286, intel 80386 or intel 80486. A unix hacker might write these as 680[0-4]0 and 80[1-4]86 or 680?0 and 80?86 respectively; see glob.
2. An alternative name for the x window system.
3. A suffix for the speed of a cd-rom drive relative to standard music CDs (1x). 32x is common in September 1999.
Dream Dictionary