grana

gra·na

[grey-nuh]
noun
(in prescriptions) plural of granum.

Origin:
1890–95; < Latin

Dictionary.com Unabridged

gra·num

[grey-nuhm]
noun, plural gra·na [-nuh] .
1.
(in prescriptions) a grain.
2.
Botany. one of the structural units of a chloroplast in vascular plants, consisting of layers of thylakoids.

Origin:
< Latin

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To grana
00:10
Grana is always a great word to know.
So is interrobang. Does it mean:
a gadget; dingus; thingumbob.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
American Heritage
Science Dictionary
granum   (grā'nəm)  Pronunciation Key 
Plural grana (grā'nə)
A stacked membranous structure within the chloroplasts of plants and green algae that contains the chlorophyll and is the site of the light reactions of photosynthesis. The saclike membranes that make up grana are known as thylakoids. See more at chloroplast.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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