Refers to a beam of light, radiation, or energy, as well as a structural beam in engineering contexts. Used in both technical and everyday language.
The robot fired a beam from its eyes.
The laser beam hit the wall.
This bridge is supported by steel beams.
The sun's beam hits the window and it's warm.
I was exposed to a radiation beam during the examination.
Used for long, narrow, rod-like objects; this is the most natural conventional choice here.
spotlight bulb; beam bulb
curved end of a highway guard rail
sunbeam
door beam
high beam
Loanword from English 'beam'.
particle beam