godan verb (-ru), intransitive verb
be fully boiled; be cooked through
Describes food that has finished boiling and is ready. Intransitive counterpart to 茹でる.
パスタが茹で上がったら、ソースと和えてください。
Once the pasta is fully boiled, toss it with the sauce.
卵がちょうどよく茹で上がっている。
The eggs are boiled just right.