Thylacoid
/ˈθaɪləˌkɔɪd/noun
Resembling or relating to a thylakoid, a flattened membrane sac found inside chloroplasts and some photosynthetic organisms.
Did you know?The name ultimately comes from Ancient Greek for a pouch or sack, an image that accurately describes the flattened membrane compartments involved in photosynthesis.
Etymological Timeline
Ancient Greek
Greek
θύλακος (thýlakos)
“Pouch, bag, or sack”
Ancient Greek
Greek
-oeidēs
“Resembling or having the form of”
19th Century
Scientific Greek
thylakoidēs
“Pouch-like or pouch-shaped”
20th Century
Scientific English
thylakoid
“A flattened membrane sac within a chloroplast or photosynthetic cell”
Modern English
English
thylacoid
“Resembling or relating to a thylakoid”