noun, noun or participle which takes 'suru', intransitive verb
seasickness
Refers to motion sickness experienced on a boat or ship. Can be used as a noun or with する to describe becoming or being seasick.
船酔いで気分が悪くなった。
I felt sick from seasickness.
彼は船に乗るとすぐ船酔いする。
He gets seasick as soon as he gets on a boat.