iodine 131


noun Chemistry.

a radioactive isotope of iodine having a mass number 131 and a half-life of 8.6 days, used in the diagnosis and treatment of disorders of the thyroid gland.

QUIZZES

Discover The Influence Of Portuguese On English Via This Quiz!
We’ve gathered some interesting words donated to English from Portuguese … as well as some that just don’t translate at all. Do you know what they mean?
Question 1 of 11
Which of the following animal names traces its immediate origin to Portuguese?
Compare radioiodine.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020