[ rah-muh n ]
/ ˈrɑ mən /
the change in wavelength of light scattered while passing through a transparent medium, the collection of new wavelengths (Raman spectrum) being characteristic of the scattering medium and differing from the fluorescent spectrum in being much less intense and in being unrelated to an absorption band of the medium.
CHALLENGE YOURSELF WITH THIS MIDDLE SCHOOL PART OF SPEECH QUIZ!
How well do you know your adjectives from your adverbs? Your preposition from your pronouns? Your interjections from your conjunctions? Let’s put your knowledge of parts of speech to the text! Note: Many of the following questions will ask you to identify the parts of speech “in order.” That means the first word in all capital letters will correspond to the first option in an answer, and so on.
Question 1 of 10
In order, what parts of speech are the words in all capital letters? Alisa was VERY tired, SO she decided to go to bed.
Origin of Raman effect
First recorded in 1925–30; named after Sir C. Raman
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for raman-spectrum
/ (ˈrɑːmən) /
a change in wavelength of light that is scattered by electrons within a material. The effect is used in Raman spectroscopy for studying molecules
Word Origin for Raman effect
C20: named after Sir Chandrasekhara Raman (1888–1970), Indian physicist
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
Scientific definitions for raman-spectrum
The alteration of the frequency and the phase of light as it passes through a transparent medium. The Raman effect is caused by small differences between the energy of photons absorbed by the molecules that make up the medium and the energy of photons re-emitted.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.