photoautotroph

[ foh-toh-aw-tuh-trof, -trohf ]
/ ˌfoʊ toʊˈɔ təˌtrɒf, -ˌtroʊf /

noun Biology.

any organism that derives its energy for food synthesis from light and is capable of using carbon dioxide as its principal source of carbon.

QUIZZES

DISCOVER THE INFLUENCE OF PORTUGUESE ON ENGLISH VIA THIS QUIZ!

We’ve gathered some interesting words donated to English from Portuguese … as well as some that just don’t translate at all. Do you know what they mean?
Question 1 of 11
Which of the following animal names traces its immediate origin to Portuguese?

Origin of photoautotroph

First recorded in 1945–50; photo- + autotroph

OTHER WORDS FROM photoautotroph

pho·to·au·to·troph·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Scientific definitions for photoautotroph

photoautotroph
[ fō′tō-ôtə-trŏf′, -trōf′ ]

See phototroph.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.