cecidium
noun
ce·cid·i·um
sə̇ˈsidēəm,
sēˈ-
plural cecidia
-ēə
: gall
especially : one caused by insects or mites —used especially in combinations
acarocecidium zoocecidium
Word History
Etymology
New Latin, from Greek kēkidion, diminutive of kēkid-, kēkis anything gushing out, dye, oak gall; akin to Old English hengest stallion, Old High German hengist, Old Norse hestr, Welsh caseg mare, Lithuanian šokti to leap, dance