音标：['spekjulәm] ；

n. 金属镜, 反射镜, 扩张器
[医] 窥器, 张开器; 透明隔; 翼斑, 翼镜(鸟)

n. a mirror (especially one made of polished metal) for use in an optical instrument
n. a medical instrument for dilating a bodily passage or cavity in order to examine the interior

词型变化：名词复数形式 : specula

词性分布：

名词100%

speculum的用法和样例：

词汇搭配

stop speculum固定开睑器
vaginal speculum阴道器,阴道开张器...
tubular speculum[医] 管形窥器...
nasal speculum鼻镜
rectal speculum直肠镜
speculum metal镜铜,镜青铜...
aural speculum内耳手术耳镜,耳窥器...
eye speculum眼睑撑,开睑器睑牵开...
speculum iron镜铁
speculum alloys反射镜合金
speculum forceps[医] 窥器钳
speculum alloy镜面青铜,镜用铜锡合...
mouth speculum口腔镜
clairvoyance speculum透视窥镜
ear speculum耳镜

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angiopteris fauriei hieron var. formosana hieron

asymptotic period technique

aticulation

auger type filling machine

bandpass if filters