Scientist whose "number" is a dimensionless ratio

Latest answer — June 27, 2025

25 Down

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NYT Crossword

This clue's Friday, June 27, 2025 appearance

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Across

  1. 1Toy that's often quadrilateral with symmetry across its diagonal
  2. 5Measured by walking
  3. 10Title akin to Mme.
  4. 13Nails
  5. 14Unwanted ones may linger
  6. 15Lee with 50+ cameos
  7. 16Something fans have
  8. 18One making the first move?
  9. 19Motto of the United Farm Workers of America
  10. 20Language mutually intelligible with Hindi
  11. 21Big 12 athlete
  12. 22A real piece of work?
  13. 23Rooibos, by another name
  14. 25Patterns for criminologists, in brief
  15. 26Big ___
  16. 27Hypocorism for Harold
  17. 28Works that might include maps of fictional lands
  18. 32Bossy bosses
  19. 33Scene-setting words
  20. 34What had a real boom in development in the early 20th century?
  21. 35Warren or Warnock: Abbr.
  22. 36Whichever
  23. 37Some customer service workers
  24. 39R&B; star with a hyphen in his name
  25. 41___ caterpillar, southern U.S. insect known for its toxic sting
  26. 44Connection point
  27. 45First nation to restore its independence from the Soviet Union
  28. 47Places to bear witness?
  29. 48"So it goes"
  30. 49Electronics giant listed on Taiwan's stock exchange
  31. 50Bothered no end
  32. 51Many A.E.D. users
  33. 52Gelled
  34. 53Seaside divers
  35. 54"Get off my ___!"

Down

  1. 1Chicken ___ (breaded Japanese entree)
  2. 2Clinch a victory
  3. 3Ride
  4. 4Teenage Salinger heroine
  5. 5Shops for a short time?
  6. 6One of seven farewells in "So Long, Farewell"
  7. 7Ribbed pants, informally
  8. 8Lake that's home to South Bass Island
  9. 9It's not observed in Hawaii: Abbr.
  10. 10"This is the beginning"
  11. 11Tough breaks
  12. 12Some flowers or magazine issues
  13. 15Food with eyes, informally
  14. 17Ladle cradle
  15. 23Sudden, huge successes
  16. 24Kind of zone
  17. 25Scientist whose "number" is a dimensionless ratio
  18. 26Word meaning "since" in a seasonal song
  19. 28All geared up
  20. 29Mass reply?
  21. 30Feature of many a deluxe Swiss Army knife
  22. 31So
  23. 32Rikki-Tikki-Tavi, for one
  24. 33"America the Beautiful" has four of them
  25. 38Ending with adept or alert
  26. 39More agreeable
  27. 40Actor Hawke of "Boyhood"
  28. 41Half of a Jungian syzygy
  29. 42Rummages (through)
  30. 43Bel ___ (Italian cheese)
  31. 45Sitar, e.g.
  32. 46Smart guy?
  33. 48Found a parking spot

The answer to “Scientist whose "number" is a dimensionless ratio” in the New York Times crossword is MACH — a 4-letter word. It most recently appeared in the New York Times crossword on June 27, 2025, a Friday puzzle, at 25-Down. Below you'll find why that fill fits, every other answer we've recorded for this clue, and links into the puzzle it came from.

“Scientist whose "number" is a dimensionless ratio” answer

MACH (4 letters)

Reveal the solution one letter at a time with the tiles above if you'd rather nudge yourself toward it than see the whole word at once. Just want it outright? The answer is MACH.

Why the answer is MACH

MACH is the 4-letter solution that fits "Scientist whose "number" is a dimensionless ratio" in the NYT Crossword crossword on June 27, 2025 (25-Down). Use the letter tiles above if you'd rather reveal it one letter at a time.

What does MACH mean?

Reading the plain dictionary sense of MACH is often the fastest way to see why it answers this clue.

(noun)

  • the ratio of the speed of a body to the speed of sound in the surrounding medium. It is often used with a numeral (as Mach 1, Mach 2, etc.) to indicate the speed of sound, twice the speed of sound, etc.

When else has “Scientist whose "number" is a dimensionless ratio” appeared?

New York Times reuses clues across dates, sometimes with a different answer depending on the grid. Here's where this exact clue has shown up, and what the answer was each time — handy when you're checking whether today's fill is the only one.

June 27, 2025 (most recent) → MACH. We haven't indexed another appearance of this exact clue yet.

Frequently asked questions

What is the answer to “Scientist whose "number" is a dimensionless ratio”?

The answer is MACH, a 4-letter word. It most recently appeared in the New York Times crossword on June 27, 2025.

How many letters is the answer to “Scientist whose "number" is a dimensionless ratio”?

4 letters: MACH.

When did this clue appear?

Most recently in the New York Times crossword on June 27, 2025 (a Friday puzzle), at 25-Down.

Can “Scientist whose "number" is a dimensionless ratio” have a different answer?

Yes — New York Times sometimes reuses a clue with a different solution to fit the grid. The answers we've recorded for each date it appeared are listed above when available.

Where can I find the rest of this day's NYT Crossword answers?

The full grid for June 27, 2025 is on the NYT Crossword answers page, with every clue and answer from that puzzle.

New York Times Crossword is published by The New York Times; WordHint is an independent site and is not affiliated with or endorsed by the publisher.

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