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lageniform

American  
[luh-jen-uh-fawrm] / ləˈdʒɛn əˌfɔrm /

adjective

Botany, Zoology.
  1. shaped like a flask; having an enlarged base tapering to a narrow neck.


Etymology

Origin of lageniform

First recorded in 1820–30; lagen(a) + -i- + -form