proestrum
noun as in strong fondness
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Example Sentences
Example:In contrast to the proestrum, the mature pollen grain is fully developed and ready for dispersal.
Definition:A fully developed pollen grain that is capable of fertilization.
From mature pollen grain
Example:The terminal pollen sac marks the last stage of pollen production, whereas the proestrum is the initial stage.
Definition:The last pollen sac to mature within an anther.
From terminal pollen sac
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