| FIB | an immovable joint (especially between the bones of the skull) |
|---|---|
| FIB | tissue consisting of or containing fibers in both animals and plants |
| FIB | any of numerous begonias having fibrous rather than tuberous or rhizomatous roots |
| FIB | a unit strand of the vascular system in stems and leaves of higher plants consisting essentially of xylem and phloem |
| FIB | the outer and thinner of the two bones of the human leg between the knee and ankle |
| FIB | accompany the peroneal arteries |