Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A membranous structure within a chloroplast made up of stacks of thylakoids.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biology a stacklike structure in plant chloroplasts that contain chlorophyll; the site of photosynthesis

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin grānum, seed; see grain.]

Examples

  • Thylakoids, containing chlorophyll and other accessory pigments, are in stacks called granum (grana, plural)

    Recently Uploaded Slideshows

  • These derive from the same Latin word granum grain: The reference is to the many fragments resulting from the detonation of a shell.

    news.beiruter.com - A directory of Lebanese blogs

  • These words are merely a commentary on those of the Master: Nisi granum frumenti cadens in terram mortuum fuerit, ipsum solum manet: "unless a grain of wheat falls into the earth and dies, it remains alone" Jn 12:24.

    Archive 2007-01-01

  • Number 322 Pupa granum is now Granopupa granum, whilst No.

    Archive 2006-11-01

  • Number 322 Pupa granum is now Granopupa granum, whilst No.

    Rossmässler's Iconographie

  • Jacet granum opressum palea, justus caesus pravorum framea.

    12/01/2003 - 01/01/2004

  • The ear of wheat (in Latin spica, obsoletely speca, from spe, hope) should not be the only hope of the husbandman; its kernel or grain (granum from gerendo, bearing) is not all that it bears.

    Walden

  • (Amomum granum Paradisi), fresh or old, is not only a toothstick, but a fetish of superior power when carried on journeys.

    Two Trips to Gorilla Land and the Cataracts of the Congo

  • If _coarse_ be not another form of _gross_, (Fr. _gros_, _grosse_,) then there is no connection between _corn_ and _granum_, or _horse_ and

    The Atlantic Monthly, Volume 06, No. 34, August, 1860

  • [290] This statement ought to be taken with more than one _granum salis_, especially as Mrs. Somerville assures us that the Chinese had made advances in the science of astronomy 1,100 years before the

    Moon Lore

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.