New American Oxford Dictionary
heptathlon
hep tath lon |hepˈtaTHˌlän hɛpˈtæθˌlɑn | ▶noun a track and field event, in particular one for women, in which each competitor takes part in the same prescribed seven events (100 -meter hurdles, high jump, shot put, 200 -meter dash, long jump, javelin, and 800 -meter run ). DERIVATIVES hep tath lete |-ˈtaTHlēt |noun ORIGIN 1970s: from hepta- ‘seven ’ + Greek athlon ‘contest, ’ on the pattern of words such as decathlon .
Oxford Dictionary
heptathlon
heptathlon |hɛpˈtaθlɒn, -lən | ▶noun an athletic event, in particular one for women, in which each competitor takes part in the same prescribed seven events (100 metres hurdles, high jump, shot-put, 200 metres, long jump, javelin, and 800 metres ). DERIVATIVES heptathlete |-liːt |noun ORIGIN 1970s: from hepta- ‘seven ’ + Greek athlon ‘contest ’, on the pattern of words such as decathlon .