Definition of grana in English:


Line breaks: grana
Pronunciation: /ˈɡrɑːnə
, ˈɡreɪnə/

noun (singular granum)

The stacks of thylakoids embedded in the stroma of a chloroplast.
More example sentences
  • Chloroplast envelopes, stacked grana and unstacked stroma thylakoids were well-defined.
  • The chloroplasts with large grana stacks were seen in 50% of cases but none of the parameters significantly explained the occurrence.
  • The VPC chloroplasts possessed well-developed thylakoids with grana.


late 19th century: plural of Latin granum 'grain'.

Definition of grana in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day rebuff
Pronunciation: rəˈbəf
reject (someone or something) in an abrupt manner…