nuchal

/N UW0 K AH0 L/
noun
  1. 1

    The back of the neck.

  2. 2

    Short for nuchal translucency scan.

  3. 3

    A neck scale, especially of a lizard.

Synonyms

adjective
  1. 1

    Of or pertaining to the back or nape of the neck.

Source: https://en.wiktionary.org/wiki/nuchal