Thylacosis
/ˌθaɪləˈkoʊsɪs/noun
A pathological condition affecting a pouch or sac, especially the pouch of a marsupial.
Did you know?The root Greek word thýlakos, meaning “pouch” or “sack,” appears in both thylacosis and thylacine—the name meaning “pouched dog.”
Etymological Timeline
Ancient Greek
Greek
θύλακος (thýlakos)
“A pouch, sack, or bag”
Hellenistic/Scientific Greek
Greek
thýlak-
“Combining form referring to a pouch or sac”
19th Century
New Latin
thylacosis
“A pathological condition involving a pouch or sac”
19th–20th Century
Scientific English
thylacosis
“A disease or abnormal condition of a pouch, particularly a marsupial pouch”
Modern English
English
thylacosis
“A rare technical term for pouch-related pathology”
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