A 42.195 kilometre (26 mile 385 yard) road race. / (figuratively, by extension) Any extended or sustained activity.

(physiology) The reaction of body tissues to nitric oxide, nitrous oxide or similar species at levels greater than can be neutralized.

(transitive) To acquire or obtain. / (transitive) To obtain a person as a prostitute for somebody else. / (transitive, criminal law) To induce or persuade someone to do something.

(mineralogy) A monoclinic-prismatic mineral containing aluminum, hydrogen, oxygen, phosphorus, and vanadium.