Os

OSMIUM
List of words for the clue Os from the crossword:
BONE CARPAL SYS IMAC MAC UNIX ZYGOMATIC ZYGOMA TRIQUETRAL SYSTEM SPHENOID SESAMOID PUBIS PALATINE ORA NASAL MALAR MACS ISCHIUM
WordClue
GEORGEOrwell, writer
OZZYOsbourne, musician