granum

noun gra·num \ˈgrā-nəm\

plural gra·na \-nə\

Definition of GRANUM

: one of the lamellar stacks of chlorophyll-containing thylakoids found in plant chloroplasts

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New Latin, from Latin, grain — more at corn

First Known Use: 1894

Medical Dictionary

noun gra·num \ˈgrā-nəm, ˈgrä-nəm\

plural gra·na \-nə\

: one of the lamellar stacks of chlorophyll-containing material in plant chloroplasts

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