名詞 apex:

1. the highest point (of something)
   同義詞：vertex, peak, acme
2. the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars
   同義詞：solar apex, apex of the sun's way

1. The growing apex or main shoot of a shrub or tree.
   頂枝灌木或喬木的生長(zhǎng)頂端或主要新梢
2. Either of the sides of an arch, curving down from the apex to an impost.
   梁腋，拱腋拱門上任意一個(gè)從拱頂?shù)焦岸臻g的部分

a.pex

n.（名詞）
【復(fù)數(shù)】 a.pex.es 或 a.pi.ces [3.p-sôz., 2p.-]
The highest point; the vertex:
最高點(diǎn)；頂點(diǎn)：
例句：
the apex of a triangle; the apex of a hill.
三角形的頂點(diǎn)；山頂

The point of culmination.See Synonyms at summit
頂峰，最高潮參見 summit
The usually pointed end of an object; the tip:
尖端：物體帶尖的一端；尖端：
例句：
the apex of a leaf.
樹葉的尖端

來源：
Latin
拉丁語