What is originally or earliest formed in the growth of an individual or organ; as, a primordial leaf; a primordial cell. Primordial utricle (Bot.), the interior lining of a young vegetable cell called?

primordial — (Biol.) Originally or earliest formed in the growth of an individual or organ; as, a primordial leaf; a primordial cell. Primordial utricle (Bot.), the interior lining of a young vegetable cell. (Webster's 1913.)

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