|Origin:||Marathon, place in Greece; from the story that in 490BC a Greek soldier ran about 25 miles from the battlefield of Marathon to Athens, to bring news of the Athenian victory over the Persians|
a long race of about 26 miles or 42 kilometres:
the Boston Marathon
Garcia ran the marathon in just under three hours.
an activity that continues for a long time and needs a lot of energy, patience, or determination:
We finished the job but it was quite a marathon.