meridian

US /məˈrɪd.i.ən/
UK /məˈrɪd.i.ən/
"meridian" picture
1.

子午线

a circle of constant longitude passing through a given place on the earth's surface and the terrestrial poles

:
The Prime Meridian passes through Greenwich, London.
本初子午线穿过伦敦格林威治。
Navigators use meridians to determine longitude.
航海家使用子午线来确定经度。
2.

鼎盛时期, 顶点

a period of greatest splendor, prosperity, or power

:
The empire reached its meridian during the 18th century.
该帝国在18世纪达到了鼎盛时期
She is now in the meridian of her career.
她现在正处于事业的鼎盛时期