Heron

Từ điển WordNet v3.1 - WordNet Dictionary

noun

Greek mathematician and inventor who devised a way to determine the area of a triangle and who described various mechanical devices (first century)
• Syn:
Hero, Hero of Alexandria
• Instance Hypernyms:
mathematician, inventor, discoverer, artificer

• Từ đồng nghĩa / Synonyms:
  Hero, Heron, Hero of Alexandria