noun
vomit; vomited matter
Refers to the substance that has been vomited; a formal or medical term.
嘔吐物の処理には注意が必要です。
Care must be taken when cleaning up vomit.
嘔吐物に血が混じっていたら、すぐに医者に相談してください。
If there is blood in the vomit, consult a doctor immediately.
Refers to the act of vomiting, while 嘔吐物 refers to the substance itself.
Compound of 嘔吐 (おうと, 'vomiting') and 物 (ぶつ, 'thing, substance').