noun Etymology: Medieval Latin & Latin; Medieval Latin apsis, from Latin Date: 1822 apsis 1, a projecting part of a building (as a church) that is usually semicircular in plan and vaulted
APSE
Meaning of APSE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012