transcription, транскрипция: [ ˈa-lə-ˌdād ]
noun
Etymology: Middle English allidatha, from Medieval Latin alhidada, from Arabic al-‘iḍāda the revolving radius of a circle
Date: 15th century
: a rule equipped with simple or telescopic sights and used for determination of direction: as
a. : a part of an astrolabe
b. : a part of a surveying instrument consisting of the telescope and its attachments