1. A complex red organic pigment containing iron and other atoms to which oxygen binds
   - heme [N. Amer], hematin [N. Amer], haemitin, protoheme, haematin [Brit, Cdn]

1. Blood
   - hem- [N. Amer], hemo- [N. Amer], haemo- [Brit, Cdn], haemato- [Brit, Cdn], hemato- [N. Amer]

Derived forms: haems

Type of: pigment

Part of: cytochrome, haemoglobin [Brit, Cdn], Hb, hemoglobin [N. Amer], myoglobin

Encyclopedia: Haem

• Stenotus acaulis
• stent
• stentor
• stentorian
• step
• step by step
• step dancing
• step forward
• step on
• step on it
• step out
• step rocket
• step stool
• step to the fore
• step-down
• step-down transformer
• step-in
• step-up
• step-up transformer
• party spirit
• party to the action
• party to the transaction
• party wall
• party whip
• party-spirited