Equine dysautonomia: a rare but predominantly fatal polyneuropathy in horses and donkeys.

(collectible card games, originally and chiefly Magic: The Gathering) The inability of a creature to attack or use certain abilities during the turn when it comes into play.

(colloquial) Utterly sick of something; entirely fed up; used with of.

morning sickness

(often derogatory) Literature focusing on an ill character or characters.

To become ill; to fall ill.

To become ill.

(simile) Very ill.

wasting disease

(simile) Very ill.