follow Dictionary.com

Get the details behind our redesign

primary beam

noun, Physics.
1.
See under secondary beam.

secondary beam

noun, Physics.
1.
a beam of particles of one kind selected from the group of particles produced when a beam of particles from an accelerator (primary beam) strikes a target.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source

Word of The Day

Difficulty index for primary beam

Few English speakers likely know this word

Word Value for primary

14
15
Scrabble Words With Friends

Quotes with primary-beam