This shows grade level based on the word's complexity.
pyrenoid
[ pahy-ree-noid, pahy-ruh-noid ]
/ paɪˈri nɔɪd, ˈpaɪ rəˌnɔɪd /
Save This Word!
This shows grade level based on the word's complexity.
noun
a spherical protein structure found within chloroplasts of certain algae and hornworts.
QUIZ
QUIZ YOURSELF ON OPPOSITES OF RED BEFORE YOU TURN SCARLET
We have a challenge that will make you blush: do you know the many words and ways to describe the opposite of red?
Question 1 of 7
Which of the following colors is used to symbolize AIR?
Words nearby pyrenoid
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use pyrenoid in a sentence
The pyrenoid is evidently concerned in the formation of the chromatophore, or in its division.
The Diatomaceae of Philadelphia and Vicinity|Charles Sumner BoyerSchmitz states that the chromatophore is thickened in the middle and contains a pyrenoid.
The Diatomaceae of Philadelphia and Vicinity|Charles Sumner BoyerA pyrenoid lies in a fold of the chromatophore on the dorsal part.
The Diatomaceae of Philadelphia and Vicinity|Charles Sumner Boyer
British Dictionary definitions for pyrenoid
pyrenoid
/ (ˈpaɪrəˌnɔɪd) /
noun
any of various small protein granules that occur in certain algae, mosses, and protozoans and are involved in the synthesis of starch
Word Origin for pyrenoid
C19: from pyrene ² + -oid
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