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.
Beam me up, Scotty
Read more in this article about some frequently asked questions and fun facts related to our definitions.
Former vs. Latter
First thing’s first: Former and latter are both terms that denote an item’s place in a two-part sequence. They usually appear in the sentence immediately following the sequence. Former refers back to the first of a set, while latter refers to the last item. An easy way to remember the difference is to recall that both former and first begin with an F, while both …
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019