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heavy oxygen

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noun

either of the two stable isotopes of oxygen having mass numbers of 17 and 18.

QUIZZES

QUIZ YOURSELF ON AFFECT VS. EFFECT!

In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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