名詞 catenary:

1. the curve theoretically assumed by a perfectly flexible and inextensible cord of uniform density and cross section hanging freely from two fixed points

cat.e.nar.y

n.（名詞）
【復(fù)數(shù)】 cat.e.nar.ies
The curve theoretically formed by a perfectly flexible, uniformly dense, and inextensible cable suspended from its endpoints.
垂曲線：理論上由一條極柔軟、密度均勻且長(zhǎng)度不變的纜繩從其兩端間垂下而形成的曲線
Something having the general shape of this curve.
曲狀物：具有此種曲線形狀的物體

來源：
New Latin catôn3ria
現(xiàn)代拉丁語 catôn3ria
from Latin [feminine of] catôn3rius [relating to a chain]
源自 拉丁語 [] catôn3rius的陰性詞 [與鏈有關(guān)的]
from catôna [chain]
源自 catôna [鏈]

【引伸】
cat.enar.y
adj.（形容詞）