granum

American  

[grey-nuhm] / ˈgreɪ nəm /

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.

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granum Scientific  

/ grā′nəm /

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

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Etymology

Origin of granum

From Latin

Example Sentences

Southward we again find many representatives crossing over to North Africa, among which Helix lenticula has a similar range to Pupa granum, which I have just referred to.

From The History of the European Fauna by Scharff, Robert Francis

The word, which is usually derived from the Lat. filum, thread, and granum, grain, is not found in Ducange, and is indeed of modern origin.

From Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 3 "Fenton, Edward" to "Finistere" by Various

It is usually composed of three simple minerals, felspar, quartz, and mica, and derives its name from having a coarse granular structure; granum, Latin for grain.

From Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology by Lyell, Charles, Sir

Malted milk, Mellin's food, imperial granum, can be used when the milk cannot be taken.

From Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada by Ritter, Thomas Jefferson

I've made her postum cereal coffee and cooked her granum, and I went out and begged dewberries from the Bigelows—she used to be fond of them—and I don't know how many times I've made toast.

From Stories That End Well An Adventure in Altruria——Through the Terrors of the Law——The Real Thing——The Old Partisan——Max—Or His Picture——The Stout Miss Hopkins' Bicycle——The Spellbinder——The Object of the Federation——The Little Lonely Girl——The Hero of Company G——A Miracle Play by Thanet, Octave