roentgen ray

x-ray

(eks'rā),

1. The ionizing electromagnetic radiation emitted from a highly evacuated tube, resulting from the excitation of the inner orbital electrons by the bombardment of the target anode with a stream of electrons from a heated cathode. Synonym(s): roentgen ray Compare: glass rays, indirect rays.

2. Ionizing electromagnetic radiation produced by the excitation of the inner orbital electrons of an atom by other processes, such as nuclear delay and its sequelae.

3. Synonym(s): radiograph

roentgen ray

n.

See x-ray.

x-ray

(rā)

1. The ionizing electromagnetic radiation emitted from a highly evacuated tube, resulting from the excitation of the inner orbital electrons by the bombardment of the target anode with a stream of electrons from a heated cathode.

2. Ionizing electromagnetic radiation produced by the excitation of the inner orbital electrons of an atom by other processes, such as nuclear delay and its sequelae.

3. A radiograph.
Synonym(s): roentgen ray.

Roentgen,

Wilhelm K., German physicist and Nobel laureate, 1845-1923.

roentgen - the international unit of exposure dose for x-rays or gamma rays.

roentgen ray - Synonym(s): x-ray

roentgenograph - Synonym(s): radiograph

x-ray

(rā)

1. Ionizing electromagnetic radiation emitted from a highly evacuated tube, resulting from excitation of inner orbital electrons by bombardment of the target anode with a stream of electrons from a heated cathode.

2. Ionizing electromagnetic radiation produced by the excitation of the inner orbital electrons of an atom by other processes, such as nuclear delay and its sequelae.

3. Synonym(s): radiograph.

Patient discussion about roentgen ray

Q. Is an X- Ray dangerous to my fetus? I fell down while I am pregnant and was sent to the ER. I was given an x- ray there, is the radiation dangerous to my fetus?

A. As far as I know one x-ray cannot harm your fetus since there is not enough radiation there to harm it. If you are worried consult a Doctor.