A progenitor cell that arises from mesenchymal stem cells in the bone marrow and has the ability to differentiate into an osteoblast or a chondrocyte.

A city, the county seat of Benewah County, Idaho, United States.

simple past tense and past participle of unstopper

(chemistry) Having both electrophilic and nucleophilic character. / (sexuality) Having a teleiophilic attraction to both men and women.