Definition of "macrocephalous" []

• Having a large head. (adjective)
• Having the cotyledons of a dicotyledonous embryo confluent, and forming a large mass compared with the rest of the body. (adjective)

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• "No one could better describe the macrocephalous cachalot, which is sometimes more than seventy-five feet long."
• "The sons range from macrocephalous tadpoles of eight to rawboned giants of eighteen."
• "She was game enough to learn Esperanto and would trap words like butterflies: in Try Anything Twice readers will find sesquipedalian, callipygian, macrocephalous."