n.
1.a blood group antigen possessed by Rh-positive people
2.a white hard metallic element that is one of the platinum group and is found in platinum ores
3.any of several hormones produced in the hypothalamus and carried by a vein to the anterior pituitary gland where they stimulate the release of anterior pituitary hormones
Idiom of the Day
on standby
to be waiting for a seat or ticket to become available on a train/plane/bus
We decided to fly to visit my parents on standby.
