atter

/ˈætə/noun
Middle School
1

Poisonous bodily fluid, especially venom of a venomous animal, such as a snake, dragon or other reptile; corrupt or morbid matter from the body, such as pus from a sore or wound; bitter substance, such as bile.

2

Moral corruption or corruptness; noxious or corrupt influence, poison to the soul, evil, anger, envy, hatred; destruction, death.

3

Epithelium produced on the tongue.

4

A scab; a dry sore.

#archaic#dialectal