Appositive
Part of speech: adjective
Definition: of or being in apposition.
Part of speech: noun
Definition: a word or phrase that is in apposition.
Qualifying
Part of speech: verb
Definition: To describe or characterize something by listing its qualities.
Example sentence: I train to quite an intense level because Formula 1 is so physical - the G-forces, the demands on your body. Your heart rate is 150, 160 through the whole race. On qualifying lap, your heart rate can be up to 180, 190, under tough conditions.