PSD
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prevention of significant deterioration: used as a standard of measurement by the U.S. Environmental Protection Agency.
QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
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Words nearby PSD
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use PSD in a sentence
May 25th Friday 1804 rain last night river fall Several inches, Set out early psd.
The Journals of Lewis and Clark|Meriwether Lewis and William Clark