What is "turco-albanians"

Turco-Albanian (, Tourk-alvanoi) is an ethnographic and religious term used by Greeks for Muslim Albanians from 1715 and thereafter. In a broader sense, the term included both Muslim Albanian and Turkish elites and military units of the Ottoman administration in the Balkans. The term is derived from an identification of Muslims with Ottomans and/or Turks, due to the Ottoman Empire's administrative millet system of classifying peoples according to religion. From the middle of the nineteenth century, the term Turk and from the late nineteenth century onwards, the derivative term Turco-Albanian has been used as a pejorative term, phrase and or expression for Muslim Albanian individuals and communities. The term has also been noted to be unclear, ideologically and sentimentally charged, and an imperialist and racialist expression. Albanians have expressed derision and disassociation toward the terms Turk and its derivative form Turco-Albanian regarding the usage of those terms in reference to them.