beam splitter

noun
Updated on: 8 Nov 2017

Definition of beam splitter

:a mirror or prism or a combination of the two that is used to divide a beam of radiation into two or more parts

Recent Examples of beam splitter from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'beam splitter.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of beam splitter

1935


Learn More about beam splitter


Seen and Heard

What made you want to look up beam splitter? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

marked by intense feeling

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!