12-letter words containing b, a, s, f, i
- spina bifida — a congenital neural tube defect in which part of the meninges or spinal cord protrudes through the spinal column, often resulting in neurological impairment.
- subfactorial — the number of ways a group of objects can be arranged so that none of the objects are in their original or correct place
- subinfeudate — to grant (lands) by subinfeudation
- surfboarding — a long, narrow board on which a person stands or lies prone in surfboarding.