Cavitation. The chondrocytes (cartilage cells) go through hypertrophication or enlargement and signal the hyalin cartilage to harden into bone. This hardening into bone is called calcification. The calcified hyalin cartilage is impermeable to the diffusion of nutrients. Since the chondrocytes cant receive any nutrients they begin to die and leave small cavities. These small cavities leave room in the hardened bone for blood vessels to travel through.
Freebase(0.00 / 0 votes)Rate this definition: Farb. Farb is a derogatory term used in the hobby of historical reenacting in reference to participants who are perceived to exhibit indifference to historical authenticity, either from a material-cultural standpoint or in action. It can also refer to the inauthentic materials used by those reenactors.
A forb (sometimes spelled phorb) is a herbaceous flowering plant that is not a graminoid (grasses, sedges and rushes).The term is used in biology and in vegetation ecology, especially in relation to grasslands and understory.orbs are members of a guild â a group of plant species with broadly similar growth form. In certain contexts in ecology, guild membership may often be more important than the taxonomic relationships between organisms.