Air-Hardening is a 13 letter English word. It's valid Scrabble word worth 3 points. It's valid Words with friends word worth 3 points.
You can make 593 anagrams from letters in air-hardening (-aadeghiinnrr).
First recorded in 1905-10
This alloy, because hardened simply in air, was called “air-hardening” or “self-hardening.”
3
3