1. (of bone especially the temporal bone) resembling stone in hardness
   - stonelike

See also: hard

Encyclopedia: Petrous

• physiological state
• physiologically
• physiologist
• physiology
• physiotherapeutic
• physiotherapist
• physiotherapy
• physique
• physostegia
• Physostegia virginiana
• Physostigma
• Physostigma venenosum
• physostigmine
• phytelephas
• Phytelephas macrocarpa
• phyto-
• phytochemical
• phytochemist
• phytochemistry
• phytogeography
• phytohormone
• Phytolacca
• Phytolacca acinosa
• Phytolacca americana
• Phytolacca dioica