1. Of or relating to a decrease in the volume of circulating blood
   - hypovolemic [N. Amer]

See also: hypovolaemia [Brit, Cdn]

• photosensitize
• photoshop
• photosphere
• photospheric
• photostat
• Photostat machine
• photosynthesis
• photosynthesise
• photosynthesize
• photosynthetic
• phototaxis
• phototherapy
• phototrophic bacteria
• phototropic
• phototropic bacteria
• phototropism
• photovoltaic
• photovoltaic cell
• Phoxinus
• Phoxinus phoxinus
• PHP
• phragmacone
• Phragmipedium
• Phragmites
• Phragmites communis