___ acid (staining agent used in electron microscopy)

Latest answer — September 20, 2025

53 Across

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NYT Crossword

This clue's Saturday, September 20, 2025 appearance

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Across

  1. 1"Hell no!"
  2. 10Group that believes in Gelassenheit (submission to God's will)
  3. 15New customs might incite them
  4. 16Verso's counterpart
  5. 17Spare no indulgence
  6. 18Prime
  7. 19Free of typos, say
  8. 20Hill folk, informally
  9. 22Lay off
  10. 23Special ___
  11. 24Secure over
  12. 25M.L.B. third baseman ___ Bohm
  13. 26Chilling
  14. 29Sports org. in a 1976 merger
  15. 30Loose sheets in a program, e.g.
  16. 33More constricting
  17. 35Sullen sorts
  18. 36Hit the horn
  19. 37"Need anything else from me?"
  20. 39Kate and Allie of 1980s TV, e.g.
  21. 40Conference acronym
  22. 41"Seems like it"
  23. 43Typically exaggerated length of time
  24. 45Have a standout performance
  25. 46Keep to oneself
  26. 49Watch unseen
  27. 50Typically exaggerated quantity
  28. 51Strip of wood from which a bow is carved
  29. 53___ acid (staining agent used in electron microscopy)
  30. 55"Later!"
  31. 57Big names
  32. 58Blow it!
  33. 59Famous around-the-world traveler
  34. 60Slower, musically

Down

  1. 1Catholic university in Florida or its home town
  2. 2Kink
  3. 3"Love, love, love!" and the like
  4. 4Original plot
  5. 5Connect with a flame
  6. 6Carrier that offered pioneering coast-to-coast service beginning in the 1930s
  7. 7Monthly magazine of politics and culture since 1850
  8. 8Specialized languages
  9. 9Who wrote "Humankind cannot bear very much reality"
  10. 10Actor Millen of BBC America's "Orphan Black"
  11. 11Charcoal and wood, for two
  12. 12Beverage sometimes topped with whipped cream
  13. 13Drink drunk the morning after, maybe
  14. 14Hidden assets
  15. 21B to C, but not A to B
  16. 24Big mess
  17. 26Word after chicken or breast
  18. 27What's wrong?
  19. 28Rare showbiz collections
  20. 30"Hmm, no idea"
  21. 31"I don't like it," in Spanish
  22. 32Web master?
  23. 34Sounds from 59-Across
  24. 38Self-effacing personality trait
  25. 39Phenomenon brought about by seasonal wind shifts
  26. 42Demand upon reaching an "enemy border"
  27. 44Bottom of many an ensemble
  28. 46Some pilgrims
  29. 47Sheets might be placed in them
  30. 48Commencement
  31. 51Apple attachment
  32. 52Powdered ingredient in sweet teas and smoothies
  33. 54Farmer's market alternative, in brief
  34. 56Result of the '64 Clay/Liston fight

The answer to “___ acid (staining agent used in electron microscopy)” in the New York Times crossword is OSMIC — a 5-letter word. It most recently appeared in the New York Times crossword on September 20, 2025, a Saturday puzzle, at 53-Across. 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.

“___ acid (staining agent used in electron microscopy)” answer

OSMIC (5 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 OSMIC.

Why the answer is OSMIC

OSMIC is the 5-letter solution that fits "___ acid (staining agent used in electron microscopy)" in the NYT Crossword crossword on September 20, 2025 (53-Across). Use the letter tiles above if you'd rather reveal it one letter at a time.

What does OSMIC mean?

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

(adjective)

  • relating to odours or the sense of smell

When else has “___ acid (staining agent used in electron microscopy)” 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.

September 20, 2025 (most recent) → OSMIC. We haven't indexed another appearance of this exact clue yet.

Frequently asked questions

What is the answer to “___ acid (staining agent used in electron microscopy)”?

The answer is OSMIC, a 5-letter word. It most recently appeared in the New York Times crossword on September 20, 2025.

How many letters is the answer to “___ acid (staining agent used in electron microscopy)”?

5 letters: OSMIC.

When did this clue appear?

Most recently in the New York Times crossword on September 20, 2025 (a Saturday puzzle), at 53-Across.

Can “___ acid (staining agent used in electron microscopy)” 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 September 20, 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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