ppl. a. (UN-1 8.)
1726. Monro, Anat., 59. The Separation of the unossified Parts.
1778. Encycl. Brit. (ed. 2), I. 344/2. A portion of the cranium then [sc. in new-born infants] unossified.
1828. Ryan, Man. Midwifery, 12. Owing to its bones being separate and unossified.
1878. A. H. Green, etc., Coal, iv. 122. The occipital condyles appear to have been similarly unossified.