rely upon
— Verb
– English
～ put trust in with confidence; "she is someone you can really rely on when times get rough"; "you can rely on his discretion"
re-uptake
— Noun
– English
～ a process of using up or consuming again; "psychopharmacologists discovered that amine reuptake is a process that inactivates monoamine neurotransmitters"
radioactive iodine uptake test
— Noun
– English
～ radioactive iodine test that measures the amount of radioactive iodine taken up by the thyroid gland