sə̇ˈsidēəm, sēˈ- noun
( plural cecid·ia -ēə)
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
: gall ; especially : one caused by insects or mites — used especially in combinations
acaro cecidium
zoo cecidium