spec.u.lum

speculum的音标和读音：
DJ音标发音： [ˈspekjələm]
KK音标发音： [ˈspɛkjələm]

speculum的词性：
n.（名词）

1. A mirror or polished metal plate used as a reflector in optical instruments.
反射镜：光学仪器中用作反射镜的镜子或抛光的金属盘

2. An instrument for dilating the opening of a body cavity for medical examination.
扩张器：使身体开口扩大以作医学检查的仪器

3. Zoology
【动物学】

4. A bright, often iridescent patch of color on the wings of certain birds, especially ducks.
翼斑，翼镜：某些鸟类，尤其是鸭子，翅膀上的明亮且通常为五彩的色块

5. A transparent spot in the wings of some butterflies or moths.
透明斑：某些蝴蝶或蛾子翅膀上的透明斑点

speculum的词源：

6. Middle English [surgical speculum]
中古英语 [外科镜]

7. from Latin [mirror]
源自 拉丁语 [镜子]

8. from specere [to look at] * see spek-
源自 specere [看着] *参见 spek-