Meaning & use
harden into bone
Last updated
Meaning
phraseintransitivetechnical
to become hard like bone, especially as soft tissue slowly changes into bone tissue
Grammar: No object; the subject is the tissue or substance that changes. Often used with begin to or slowly.
Patterns
- something hardens into bone
- begin to harden into bone
In rare cases, muscle tissue can harden into bone after a serious injury.
The doctor explained that the damaged area might slowly harden into bone.
Scientists studied how the soft tissue hardened into bone over several months.
Common combinations
- slowly harden into bone
- The damaged tissue slowly hardened into bone.
- begin to harden into bone
- The area began to harden into bone after the injury.
- harden into bone over time
- The material can harden into bone over time in the body.
- tissue hardens into bone
- In this condition, soft tissue hardens into bone.
Synonyms and how they differ
- ossify
- Ossify is the technical verb for this process and is more formal; harden into bone is a plain description.
- calcify
- Calcify means to harden with calcium deposits, which may not become true bone; harden into bone is more specific.
Word family
Commonly confused: harden into bone or harden into stone?
harden into bone vs harden into stone
Harden into stone describes rock-like hardening, often in geology or stories; harden into bone is specifically about bone tissue in the body.
Practice
Choose the sentence that uses harden into bone correctly.
Choose one answer.
Harden into bone is intransitive: the subject is the tissue that changes, so option 1 is correct. Options 2 and 3 wrongly use it with an object. Option 4 reverses the process: bone does not harden into soft tissue.
Make it your own
Write a sentence using “harden into bone”, then check it and compare it with the examples above.