iron hat

noun

Definition of iron hat 

1a : a headpiece of iron or steel used as armor during the middle ages

b slang : derby sense 2a

c : a metal or plastic safety hat

2 : gossan

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for iron hat

Middle English iren hat, from iren iron + hat

Keep scrolling for more

Learn More about iron hat

Dictionary Entries near iron hat

iron gray

iron hand

ironhard

iron hat

ironhead

ironheaded

ironheads

Statistics for iron hat

Look-up Popularity

Comments on iron hat

What made you want to look up iron hat? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to enclose within walls

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!