Dictionary.com
Thesaurus.com
Synonyms

spectra

American  
[spek-truh] / ˈspɛk trə /

noun

  1. a plural of spectrum.

spectra British  
/ ˈspɛktrə /

noun

  1. the plural of spectrum

"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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But Brent Donnelly, president of Spectra Markets, offered a novel theory about what might have driven stocks higher on Monday.

From MarketWatch • Apr. 13, 2026

Aberdeen's annual Spectra festival of light event is now under way in the city, with organisers encouraging people to "stick to plans, wrap up warm, grab your wellies, and enjoy the festival".

From BBC • Feb. 5, 2026

Treasurys shows the kind of risks that markets face, said Brent Donnelly, president of Spectra Markets.

From The Wall Street Journal • Jan. 21, 2026

Brent Donnelly, president of Spectra Markets, crunched the numbers, and found that the Time Magazine Person of the Year’s track record as a counter-indicator is actually pretty remarkable.

From MarketWatch • Dec. 11, 2025

Spectra of Sirius show a large number of faint lines besides the well-known broad lines.

From Scientific American Supplement, No. 601, July 9, 1887 by Various

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.