Artificial intelligent assistant

knap-bottle

ˈknap-bottle Herb. Obs.
  The Bladder-campion, Silene inflata, so called from its inflated calyx which snaps when suddenly compressed.

1640 Parkinson Theat. Bot. 263 Some with us call it Knap bottle, and others Spatling or Frothy Poppy.

Oxford English Dictionary

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