The groove in the primitive streak of the embryonic disk.
🤔 - thinking face emoji - What does the thinking face emoji mean?Read more in this article about some frequently asked questions and fun facts related to our definitions.
Learn The History Of The New York Times Crossword PuzzleThere are plenty of crossword puzzles in publications across the country, but when we think of the pinnacle of puzzledom (Not officially a word, but, perhaps, it should be?), the purveyors of the most preeminent puzzles, we bow to The New York Times (NYT). But how did it all begin?
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.