(botany) The seam at the union of two margins in a plant.
(philosophy, figurative) The procedure by which a subject comes to be identified with its own representation, as in the identification of the speaker with the sign “I” within a certain discourse; (by extension) any process by which the content of something is determined or supplied from outside itself.
Verbi
(transitive, also, figurative) To sew up or join by means of a suture.