1. winter fern large branching biennial herb native to Eurasia and Africa and adventive in North America having large fernlike leaves and white flowers; usually found in damp habitats; all parts extremely poisonous
  2. interferon an antiviral protein produced by cells that have been invaded by a virus; inhibits replication of the virus
  3. winter wren small wren of coniferous forests of northern hemisphere
  4. wintergreen any of several evergreen perennials of the genus Pyrola
  5. water fern ferns that grow in water
  6. winter urn a common name for a variety of Sarcosomataceae
  7. interfere get involved, so as to alter or hinder an action
  8. interfering intrusive in a meddling or offensive manner
  9. interference the act of hindering or obstructing or impeding
  10. oleander fern tropical fern having leathery fronds resembling oleander
  11. interbrain the posterior division of the forebrain
  12. interwoven linked, laced, or locked closely together
  13. intervene be placed or located between other things
  14. introvert a person who tends to shrink from social contacts
  15. winter-flowering of plants that bloom during the winter
  16. winter melon any of a variety of muskmelon vines having fruit with a smooth white rind and white or greenish flesh that does not have a musky smell
  17. interviewer a person who conducts an interview
  18. winterberry deciduous shrub of southeastern and central United States
  19. interphone a telephonic intercommunication system linking different rooms in a building or ship etc
  20. intervenor (law) a party who interposes in a pending proceeding

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