X

x

noun

{bc}the 24th letter of the English alphabet

x

verb

{bc}to mark with an {it}x{/it}

x

abbreviation

cross

x

symbol

{d_link|times|times}

X

adjective

{bc}of such a nature that admission is denied to persons under a specified age (such as 17)

X-Acto

trademark

Array

x-ax*is

noun

{bc}the axis in a plane Cartesian coordinate system parallel to which abscissas are measured

X band

noun

{bc}a segment of the superhigh-frequency radio spectrum that lies between 5.2 GHz and 10.9 GHz and is used especially for radars and for spacecraft communication

X chromosome

noun

{bc}a sex chromosome that usually occurs paired in each female cell and single in each male cell in species in which the male typically has two unlike sex chromosomes {dx}compare {dxt|y chromosome||}{/dx}

x-co*or*di*nate

noun

{bc}a coordinate whose value is determined by measuring parallel to an x-axis