arcuate + noun
作定语，常见于解剖学术语，如 arcuate nucleus（弓状核）、arcuate ligament（弓状韧带）。
The arcuate nucleus sits near the base of the hypothalamus.
弓状核位于下丘脑底部附近。
弓形的
弯成弓形；弓形的；[医] 弓形的
curved like a bow
弯成弓形
curved into the shape of a bow.
The arcuate windows of the old cathedral let in a soft, diffused light.
旧大教堂的弓形窗户透进柔和、散射的光线。
用法提示：形容词arcuate修饰windows，表示窗户的形状为弓形。
The arcuate ligament in the knee helps stabilize the joint during movement.
膝盖中的弓形韧带在运动时有助于稳定关节。
用法提示：形容词arcuate修饰ligament，描述韧带的弓形形态。
The bird's arcuate flight path puzzled the ornithologists.
鸟的弓形飞行路径让鸟类学家感到困惑。
用法提示：形容词arcuate修饰flight path，指路径呈弓形。
作定语，常见于解剖学术语，如 arcuate nucleus（弓状核）、arcuate ligament（弓状韧带）。
The arcuate nucleus sits near the base of the hypothalamus.
弓状核位于下丘脑底部附近。
作表语时多用于描述结构形状，日常口语中较少使用。
The band of fibers is arcuate, curving gently across the surface.
这条纤维带呈弓形，沿着表面缓缓弯曲。
可用 gently、slightly 等副词修饰，说明弓形弯曲的程度。
The bone forms a gently arcuate ridge along its upper edge.
这块骨沿上缘形成一道平缓的弓形隆起。
grammar · medium
易错句子The X-ray shows a arcuate band of fibers.
正确表达The X-ray shows an arcuate band of fibers.
arcuate 的读音以元音音素 /ɑː/ 开头，单数可数名词前的不定冠词要用 an；a 只用于辅音音素前。
grammar · medium
易错句子The ligament is arcuate shape.
正确表达The ligament is arcuate in shape.
arcuate 是形容词，不能直接接名词 shape 作表语；表示“在形状上是弓形的”要用 be arcuate in shape，或直接用 be arcuate。
grammar · medium
易错句子The structure is an arcuate.
正确表达The structure is arcuate.
arcuate 只作形容词，不能加不定冠词 an 当名词用；汉语“弓形”可作名词，但英语这里要用形容词 arcuate 作表语，或说 an arcuate structure。
“arched”多用于建筑拱门或弯成拱形的身体部位，是日常可用的描述；“arcuate”是解剖学、生物学的专业术语，多修饰神经束、韧带、血管等呈弓形的结构，语域更技术化。
“curved”是通用词，任何弯曲的形状都能用；“arcuate”只指弯成弓（弧）形，且几乎只出现在专业文献中，两者不能随意互换。
“bowed”常指腿等弯成弓形，也可指低头、弯腰的动作，带动作意味；“arcuate”只静态描述弓形轮廓，属技术用词，不用于动作或姿态。
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