Noun
In evolution, a deviation from the typical sequence in the formation of organs or parts.
Source: Webster's dictionaryDrake, Abby Grace, "Evolution and development of the skull morphology of canids: An investigation of morphological integration and heterochrony" (January 1, 2004). Source: Internet
The pattern of human postnatal brain growth differs from that of other apes ( heterochrony ) and allows for extended periods of social learning and language acquisition in juvenile humans. Source: Internet