Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
O | Yes | No | No | No |
blood group | Yes | No | No | No |
O (noun) | blood group (noun) |
---|---|
the blood group whose red cells carry neither the A nor B antigens | human blood cells (usually just the red blood cells) that have the same antigens |
the 15th letter of the Roman alphabet | |
a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust |