x

x axes

x axis

x c

x chromosome

x client

x consortium

x dis ease's

x dis eases

x dis-ease's

x dis-eases

x disease

x ed

x factor

x height

x high

x image extension

x in

x ing

x irradiate

x irradiation

x line

x linked

x marks the spot

x out

x pr

x protocol

x radiate

x radiation

x rated

x ray

x ray astronomer

x ray astronomy

x ray burster

x ray crystallography

x ray diffraction

x ray photograph

x ray photography

x ray spectrometer

x ray spectrometry

x ray spectroscopy

x ray star

x ray technician

x ray therapy

x ray tube

x scharwenka

x server

x stretcher

x terminal

x unit

x wave

x window system

x'

x'd out

x-1

x-acto knife

x-axes

x-axis

x-c

x-chromosome

x-designer

x-disease

x-div.

x-ed

x-factor

x-height

x-high

x-in

x-inactivation

x-ing

x-irradiate

x-irradiation

x-line

x-linked

x-linked dominant inheritance

x-linked gene

x-linked hypogammaglobulinemia

x-linked hypophosphatemic osteomalacia

x-linked recessive inheritance

x-linked scid

x-or circuit

x-pr

x-radiate

x-radiation

x-rated

x-ray

x-ray astronomer

x-ray astronomy

x-ray binary

x-ray binary star

x-ray burster

x-ray crystallography

x-ray diffraction

x-ray film

x-ray machine

x-ray microscope

x-ray photograph

x-ray photography

x-ray picture

x-ray spectrometer