introducer

Meanings

1. 1
   noun

   a person or thing that brings someone, something, or an idea into use, notice, or acquaintance

   The essay credits the reformer as the introducer of a new approach to public education.

2. 2
   noun

   medicine: a sheath or other device used to guide an instrument, catheter, or implant into the body

   The surgeon passed the catheter through a sterile introducer.

Formed from introduce + the agent suffix -er. Introduce came from Latin introducere, 'lead or bring in,' from intro, 'inward,' + ducere, 'lead.' The medical device sense preserves this literal idea of guiding something into a passage.

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