infiltratrix

Formed as infiltrate +‎ -trix, after infiltrator. Compare the French infiltratrice and the Italian infiltratrice.

• IPA^(key): /ˈɪnfɪltɹeɪtɹɪks/

infiltratrix (plural infiltratrices)

1. (rare) A woman who infiltrates; a female infiltrator.
   • 1953, Fourth Leaders from The Times: A selection from the past twelve months, London: The Times Publishing Company Limited, page 81, chapter title:

     The Infiltratrix

   • 1997, The Private Library CII^?, Private Libraries Association, page 21:

     Dere grany, the infiltratrix, what big ears you have.