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n. pl. gra·na (-nə)
A membranous structure within a chloroplast made up of stacks of thylakoids.

[Latin grānum, seed; see grain.]


(Botany) botany any of the membrane layers in a chloroplast


(ˈgreɪ nəm)

n., pl. -na (-nə).
1. (in prescriptions) a grain.
2. one of the structural units of a chloroplast in vascular plants, consisting of layers of thylakoids.
[1890–1900; < Latin]
References in periodicals archive ?
Also planting a tree on Saturday was Taylee Granum, 10, of Salem.
ALFRED "AL" GRANUM, viewed by many as a leader and innovator in the financial services industry, died Jan.
Alfred (Al) Granum, CLU, one of the true greats in the history of the life insurance industry, passed away at the age of 91 on Thursday, Jan.
8220;I want my grandson to have a healthy dessert alternative,” says Mike Granum, the company's founder, adding that “He is my inspiration.
Robert "Bob" Granum, founder and senior chairman of the board of Panel Processing Inc.
The cantus firmus for the Credo is the chant Jacet granum, the third respond for Matins and processions for the feast of St Thomas of Canterbury in the Use of Salisbury.
During the 2003 legislative session, according to a radio ad by Fred Granum, state Rep.
Granum has certified all of its black and green teas (bulk and bag) that are eligible for certification.