Citations:nekomimi

Noun: "(chiefly Japanese fiction) a fictional character who has cat ears on top of the head of an otherwise human body, and possibly other feline characteristics as well, such as a tail"

 * 2007 — Kurogane, "Magical kitties", Malaysia Star, 10 June 2007:
 * Those with a “nekomimi” (cat ears) fetish will certainly enjoy this manga!
 * 2008 — Carlo Santos, "RIGHT TURN ONLY!!", Anime News Network, 25 November 2008:
 * if the complex fantasy-drama of Loveless gets in the way of checking out hot catboys, then you can still get your nekomimi fix here.
 * 2011 — Farah Tamizuddin, "Springfield girl starts anime club", Lake County News-Sun, 1 May 2011:
 * Catgirls, or Nekomimi, are common in Japanese anime and consist of a human body with cat ears, a cat tail or another catlike feature.
 * 2012 — Pentabu, My Girlfriend's a Geek, Vol. 1 (trans. Stephen Paul), Yen Press (2012; original Japanese novel published 2007), ISBN 9780316221801, unnumbered page:
 * …Okay, the mood was ruined from the moment she put on the nekomimi nurse outfit.
 * if the complex fantasy-drama of Loveless gets in the way of checking out hot catboys, then you can still get your nekomimi fix here.
 * 2011 — Farah Tamizuddin, "Springfield girl starts anime club", Lake County News-Sun, 1 May 2011:
 * Catgirls, or Nekomimi, are common in Japanese anime and consist of a human body with cat ears, a cat tail or another catlike feature.
 * 2012 — Pentabu, My Girlfriend's a Geek, Vol. 1 (trans. Stephen Paul), Yen Press (2012; original Japanese novel published 2007), ISBN 9780316221801, unnumbered page:
 * …Okay, the mood was ruined from the moment she put on the nekomimi nurse outfit.