different between constriction vs pseudopetiole

English

Borrowed from Late Latin constrictio, constrictionis, from Latin constringo.

constriction (countable and uncountable, plural constrictions)

The act of constricting, the state of being constricted, or something that constricts.
A narrow part of something; a stricture.
A compression.

pseudo- +? petiole

pseudopetiole (plural pseudopetioles)

(botany) The petiole of some monocotyledon leaves which is not part of the lower leaf zone.
(botany) A petiole-like constriction of the lamina or similar organ (such as a phyllode or phylloclade).
(botany) The morphologically distinct proximal section of a petiole to which stipules are attached.

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