名詞 lunette:

1. temporary fortification like a detached bastion
2. oval or circular opening; to allow light into a dome or vault
   同義詞：fenestella

lu.nette

n.（名詞）
Architecture
【建筑學(xué)】
A small, circular or crescent-shaped opening in a vaulted roof.
半圓壁，弧形窗：在高高的屋頂上的小的，圓的或新月形的開口
A crescent-shaped or semicircular space, usually over a door or window, that may contain another window, a sculpture, or a mural.
弦月窗：通常在門或窗上的新月形或半圓形空間，它可包含另外一個窗、雕刻或壁飾
A fortification that has two projecting faces and two parallel flanks.
防御墻外側(cè)的眼鏡堡：有兩個突出面和兩個平行側(cè)面的碉堡
A broad, low-lying, typically crescent-shaped mound of sandy or loamy matter that is formed by the wind, especially along the windward side of a lake basin.
眼鏡堡：一片廣闊的、地勢低的、典型的新月形沙堆或土堆，由風(fēng)力形成，尤其是沿湖泊的順風(fēng)方向

來源：
French
法語
from Old French lunete [moon-shaped object] [diminutive of] lune [moon]
源自 古法語 lunete [月形物體] [] lune的小后綴 [月球]
from Latin lôna [moon] * see lune
源自 拉丁語 lôna [月球] *參見 lune