photoautotroph

[ foh-toh-aw-tuh-trof, -trohf ]

/ ˌfoʊ toʊˈɔ təˌtrɒf, -ˌtroʊf /

Save This Word!

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.

QUIZ

CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?

There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?

Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

TAKE THE QUIZ TO FIND OUT

Origin of photoautotroph

First recorded in 1945–50; photo- + autotroph

OTHER WORDS FROM photoautotroph

pho·to·au·to·troph·ic, adjective

Words nearby photoautotroph

photoactive, photo-ageing, photoaging, photoallergic, photoanalyst, photoautotroph, photoautotrophic, photobathic, photobiology, photobiotic, photobomb

Scientific definitions for photoautotroph

photoautotroph

[ fō′tō-ô′tə-trŏf′, -trōf′ ]

See phototroph.