granum

[grey-nuhm]

noun

plural

grana 

1. (in prescriptions) a grain.

2. Botany.,  one of the structural units of a chloroplast in vascular plants, consisting of layers of thylakoids.

granum

plural

grana 

1. 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.

2. See more at chloroplast

Word History and Origins

Origin of granum¹

From Latin

Example Sentences

They probably wouldn’t have bet on Clarice “Pinky” Granum, Stern’s pink-haired, Day-Glo-tattoed, nose-nail-wearing granddaughter.

Read more on Los Angeles Times

Nonetheless, by the novel’s somewhat abrupt ending, it’s clear that time marches on, as will Pinky Granum.

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An oil & gas pump jack is seen near Granum, Alberta, Canada May 6, 2020.

Read more on Reuters

Doug Granum of Southworth, who led the pole’s mid-1970s restoration, calls its removal tragic.

Read more on Seattle Times

Granum said, “The point is to understand the true nature of gorillas. He was a stranger in a strange land and touched so many hearts. “Who among us can say that?

Read more on Seattle Times