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proembryo |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Proembryo \Pro*em"bry*o\, n. [Pref. pro- + embryo. ] (Bot.) a The series of cells formed in the ovule of a flowering plant after fertilization, but before the formation of the embryo. b The primary growth from the spore in certain cryptogamous plants; as the proembryo, or protonema, of mosses.
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