yolks

/jษ™สŠks/
noun
  1. 1

    The yellow, spherical part of an egg that is surrounded by the white albumen, and serves as nutriment for the growing young.

  2. 2

    The grease in a sheep's fleece.

Source: https://en.wiktionary.org/wiki/yolk, https://en.wiktionary.org/wiki/yolks