noun Optics, Photography.
a mirror or prism that divides a beam of light into two parts by reflecting a part of the beam, used in camera range finders.
What Are Split Infinitives?Sometimes infinitives need a little space. A split infinitive occurs when there’s an adverb between two parts of an infinitive. An infinitive consists of the word to and the simple form of a verb (e.g. to go and to read). “To suddenly go” and “to quickly read” are examples of split infinitives because the adverbs (suddenly and quickly) split (or break up) the infinitives to …
What Are Infinitives?An infinitive is the most basic form of a verb. You’ll usually see it with the word to, as in to eat or to think. An infinitive phrase is an infinitive plus complements and modifiers. To eat vegetables daily and to think about a solution are infinitive phrases. While infinitives themselves are verbs, infinitive phrases can be used as nouns, adjectives, or adverbs. Adverbial Infinitives …
Origin of beam splitter
First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for beam splitter
a system that divides a beam of light, electrons, etc, into two or more paths
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012