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Streeter developmental horizon(s)

Pronunciation: stre'ter de-vel'op-men'tal ho-ri'zon[z]

Definition: A term borrowed from geology and archeology by Streeter to define 23 developmental stages in young human embryos, from fertilization through the first 2 months; each horizon spanned 2–3 days and emphasized specific anatomic characteristics, to avoid discrepancies in the determination of age and body dimensions.

[G.L. Streeter]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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