Noun heron has 2 senses
  1. Hero, Heron, Hero of Alexandria - Greek mathematician and inventor who devised a way to determine the area of a triangle and who described various mechanical devices (first century)
    --1 is a kind of mathematician; inventor, discoverer, artificer
  2. heron - gray or white wading bird with long neck and long legs and (usually) long bill
    --2 is a kind of
    wading bird, wader
    --2 is a member of Ardeidae, family Ardeidae
    --2 has particulars:
     great blue heron, Ardea herodius; great white heron, Ardea occidentalis; egret; little blue heron, Egretta caerulea; night heron, night raven; boatbill, boat-billed heron, broadbill, Cochlearius cochlearius; bittern
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