Acron (Ἄκρων), son of Xenon, was an eminent Greek physician born at Agrigentum (Gk. Acragas). His exact date is not known; but, as he is mentioned as being contemporary with Empedocles, who died about the beginning of the Peloponnesian War, he must have lived in the fifth century BC. From Sicily he went to Athens and there opened a philosoph...
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http://en.wikipedia.org/wiki/Acron
(from the article `crustacean`) At the front, or anterior end, of the body there is an unsegmented, presegmental region called the acron. In most crustaceans at least four somites ...
Found on
http://www.britannica.com/eb/a-z/a/13
the unsegmented, preoral portion of the body of an arthropod.
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https://www.infoplease.com/dictionary/acron
No exact match found.
