ostribrum Save DMLBS ostribrum , kind of plant, prob. charlock (Sinapis arvensis) or wild radish (Raphanus raphanistrum). ostribrum, i. caulis agrestis A. cherlok MS BL Sloane 3545 f. 8; ostribium, i. cant silvestre cherlok Herb. Harl. 3388 f. 83v.