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proembryo

Proembryo is a 9 letter word which starts with the letter P and ends with the letter O for which we found 2 definitions.

Definition
(n.) The series of cells formed in the ovule of a flowering plant after fertilization but before the formation of the embryo.
(n.) The primary growth from the spore in certain cryptogamous plants; as the proembryo or protonema of mosses.
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