Artificial intelligent assistant

utricule

ˈutricule Bot. rare—1.
  [a. F. utricule: see utricle1.]
  A small bladder-like sac or body.

1830 Lindley Nat. Syst. Bot. 240 The reservoirs of oil in the leaves of Labiatæ..are little utricules having an open orifice.

Oxford English Dictionary

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