[ spek-truh-graf, -grahf ]
/ ˈspɛk trəˌgræf, -ˌgrɑf /
Save This Word!


a spectroscope for photographing or producing a representation of a spectrum.



Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of spectrograph

First recorded in 1880–85; spectro- + -graph

OTHER WORDS FROM spectrograph

spec·trog·ra·pher [spek-trog-ruh-fer], /spɛkˈtrɒg rə fər/, nounspec·tro·graph·ic [spek-truh-graf-ik], /ˌspɛk trəˈgræf ɪk/, adjectivespec·tro·graph·i·cal·ly, adverbspec·trog·ra·phy, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for spectrograph

British Dictionary definitions for spectrograph

/ (ˈspɛktrəʊˌɡrɑːf, -ˌɡræf) /


a spectroscope or spectrometer that produces a photographic record (spectrogram) of a spectrumSee also sound spectrograph

Derived forms of spectrograph

spectrographic, adjectivespectrographically, adverbspectrography, noun
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 spectrograph

[ spĕktrə-grăf′ ]

A photograph or computer image of a spectrum produced by a spectroscope. Also called spectrogram See spectroscope.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.