Although the word chondroblast is commonly used to describe an immature chondrocyte, the term is imprecise, since the progenitor of chondrocytes (which are mesenchymal stem cells) can differentiate into various cell types, including osteoblasts
choanocyte. n. 1. (Zoology) any of the flagellated cells in sponges that maintain a flow of water through the body. A collar of protoplasm surrounds the base of the flagellum. Also called: collar cell.
Melanocytes are the cells that are responsible for producing the pigment melanin, which gives color to skin and hair. Everyone has melanocytes, but people with dark skin produce more melanin than those with lighter skin do.