astrolabes

noun

An astronomical and navigational instrument for gauging the altitude of the Sun and stars.

Similar Words

astable astatic aster /ˈæstə(ɹ)/ asterisk /ˈæstəɹɪsk/ asterisked asterisking asterisks asterism /ˈastəɹɪzəm/ asterisms astern /əˈstɜːn/