[ spek-truh-graf, -grahf ]

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

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/, noun
  • spec·tro·graph·ic [spek-truh-graf-ik], /ˌspɛk trəˈgræf ɪk/, adjective
  • spec·tro·graph·i·cal·ly, adverb
  • spec·trog·ra·phy, noun

Words Nearby spectrograph

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use spectrograph in a sentence

  • I don't know how successfully we can get a spectrograph of the comet, but it's worth an attempt.

    The Year When Stardust Fell | Raymond F. Jones

British Dictionary definitions for spectrograph


/ (ˈspɛktrəʊˌɡrɑːf, -ˌɡræf) /

  1. a spectroscope or spectrometer that produces a photographic record (spectrogram) of a spectrum: See also sound spectrograph

Derived forms of spectrograph

  • spectrographic, adjective
  • spectrographically, adverb
  • spectrography, 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′ ]

  1. 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.