NOUN: "the reddish brittle coating formed on iron especially when chemically attacked by moist air" Crossword Clue

We have the 4-letter answer for NOUN: "the reddish brittle coating formed on iron especially when chemically attacked by moist air" crossword clue, last seen in the Missing Letter Crossword January 10, 2026 puzzle. Sometimes we all need some help finding the answer!

NOUN: "the reddish brittle coating formed on iron especially when chemically attacked by moist air" Crossword Answer

↓16.

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Helpful Hints

(noun)
1. the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water
2. any of various fungi causing rust disease in plants
(adjective)
1. of the brown color of rust
(verb)
1. become destroyed by water, air, or a corrosive such as an acid
2. cause to deteriorate due to the action of water, air, or an acid

Hint 2: Clue Definition

ESPECIALLY (adverb)
1. to a distinctly greater extent or degree than is common
2. in a special manner

Hint 3: Anagram

Unscramble the letters below to solve for today's answer.
RUTS

More Missing Letter Crossword (1/10/2026) Answers

Across

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11. Coffee break time

12. GEOGRAPHICAL NAME: "city in eastern Baden-Württemberg, southern Germany population 117,000"

13. Suffix with rad or gen

14. Sandwich alternative

15. NOUN: "an act or an instance of disloyalty"

18. VERB: "to tremble or shudder usually from cold or fear"

19. VERB: "to show to have had a sufficient legal reason"

21. Way of walking

22. NOUN: "a musical instrument of the lute family used in southwest Asia and northern Africa

24. ADJECTIVE: "excellent; exciting"

25. BIOGRAPHICAL NAME: "Edmund 1729–1797 British statesman and orator"

27. NOUN: "a swift-running Australian ratite bird"

28. "___ a Diver" (1980 Steve Winwood album)

29. Ending for ballad or profit

30. Wee

All Answers

Down

1. Pasta often baked

2. PHRASAL VERB: "to become covered with [frozen water]"

3. NOUN: "a statement (such as a response) that does not follow logically from or is not clearly related to anything previously said"

4. ABC morning show, briefly

5. Saudi Arabia neighbor (abbr.)

6. NOUN: "a feat or display of strength, skill, or ingenuity"

7. VERB: "to make quiet; calm"

8. NOUN: "a place usually in the country for recreation or instruction often during the summer"

14. NOUN: "a website that allows visitors to make changes, contributions, or corrections"

17. NOUN: "animal tissue consisting chiefly of cells distended with greasy or oily matter"

19. Escalante portrayed in "Stand and Deliver"

20. GEOGRAPHICAL NAME: "territory of northwestern Canada between Alaska and British Columbia bordering on the Arctic Ocean; capital Whitehorse"

21. NOUN: "exultant high-spirited joy"

23. VERB: "to confront with assured power of resistance"

25. Step up to the plate

26. Ending for fail or fig

All Answers