factor XIII
— Navneord
– Engelsk
~ in the clotting of blood thrombin catalyzes factor XIII into its active form (fibrinase) which causes fibrin to form a stable clot
family Xiphiidae
— Navneord
– Engelsk
~ comprising the common swordfishes
family Xylariaceae
— Navneord
– Engelsk
~ family of fungi characterized by dark brown to black spores
family Xyridaceae
— Navneord
– Engelsk
~ plants of tropical to temperate regions; usually in wet places