Dictionary.com

Sinus Iridum

[ see-nuhs -ir-i-duhm, sahy- ]
/ ˈsi nəs ˈɪr ɪ dəm, ˈsaɪ- /
Save This Word!

noun

(Bay of Rainbows) a semicircular dark plain in the second quadrant of the face of the moon.

QUIZZES

QUIZ YOURSELF ON "WAS" VS. "WERE"!

Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for Sinus Iridum

FEEDBACK