Definition of speculum in English:

speculum

nounPlural specula ˈspɛkjʊləmˈspəkjələm

1Medicine
A metal instrument that is used to dilate an orifice or canal in the body to allow inspection.
Example sentencesExamples
- Using a nasal speculum, your doctor may look inside your nose for signs of allergic disease such as increased nasal secretions, swelling or polyps.
- An instrument called a speculum, the same as used for a smear test, is sometimes used.
- With the headlight and speculum the external auditory canal is inspected and cleared of any obstructing wax or debris.
- The surgeon uses a wire speculum to retract the eyelids to expose the eyeball.
- Your eyelids will be opened up using a small instrument called a speculum.
2Ornithology
A bright patch of plumage on the wings of certain birds, especially a strip of metallic sheen on the secondary flight feathers of many ducks.
Example sentencesExamples
- The latter is important because dabbling ducks have a coloured area in the wing called the speculum.
- Females with unpatterned dark bills, an overall dark brown body colour, and a violet speculum with only the trailing edge with white were considered American Black Ducks.
- Both sexes have a black and white wing-patch, or speculum, that is distinctive in flight.
- Both sexes have orange feet and a blue speculum, or wing-patch, bordered in white on two sides, best seen in flight.
3A mirror or reflector of glass or metal, especially (formerly) a metallic mirror in a reflecting telescope.
Example sentencesExamples
- If light ‘sees,’ then the speculum which reflects this seeing light can analogically participate in the solar vision that it reflects; it can derive from it its own vision.
- A headlamp or head mirror and a nasal speculum should be used for optimal visualization.
- This work of light allows us to see the shapes of the world reflected on the optical speculum.
1. 3.1
  short for speculum metal
  Example sentencesExamples
  He made his mirrors from speculum metal - four parts copper to one part tin - but had to construct a forge to melt the speculum and cast the disc from which the mirror could be ground.

Origin

Late Middle English: from Latin, literally 'mirror', from specere 'to look'.

Definition of speculum in US English:

speculum

nounˈspəkyələmˈspəkjələm

1Medicine
A metal or plastic instrument that is used to dilate an orifice or canal in the body to allow inspection.
Example sentencesExamples
- The surgeon uses a wire speculum to retract the eyelids to expose the eyeball.
- An instrument called a speculum, the same as used for a smear test, is sometimes used.
- With the headlight and speculum the external auditory canal is inspected and cleared of any obstructing wax or debris.
- Your eyelids will be opened up using a small instrument called a speculum.
- Using a nasal speculum, your doctor may look inside your nose for signs of allergic disease such as increased nasal secretions, swelling or polyps.
2Ornithology
A bright patch of plumage on the wings of certain birds, especially a strip of metallic sheen on the secondary flight feathers of many ducks.
Example sentencesExamples
- Both sexes have orange feet and a blue speculum, or wing-patch, bordered in white on two sides, best seen in flight.
- Females with unpatterned dark bills, an overall dark brown body colour, and a violet speculum with only the trailing edge with white were considered American Black Ducks.
- Both sexes have a black and white wing-patch, or speculum, that is distinctive in flight.
- The latter is important because dabbling ducks have a coloured area in the wing called the speculum.
3A mirror or reflector of glass or metal, especially (formerly) a metallic mirror in a reflecting telescope.
Example sentencesExamples
- If light ‘sees,’ then the speculum which reflects this seeing light can analogically participate in the solar vision that it reflects; it can derive from it its own vision.
- This work of light allows us to see the shapes of the world reflected on the optical speculum.
- A headlamp or head mirror and a nasal speculum should be used for optimal visualization.
1. 3.1
  short for speculum metal
  Example sentencesExamples
  He made his mirrors from speculum metal - four parts copper to one part tin - but had to construct a forge to melt the speculum and cast the disc from which the mirror could be ground.

Origin

Late Middle English: from Latin, literally ‘mirror’, from specere ‘to look’.

单词	speculum
释义	Definition of speculum in English: speculum nounPlural specula ˈspɛkjʊləmˈspəkjələm 1Medicine A metal instrument that is used to dilate an orifice or canal in the body to allow inspection. Example sentencesExamples Using a nasal speculum, your doctor may look inside your nose for signs of allergic disease such as increased nasal secretions, swelling or polyps. An instrument called a speculum, the same as used for a smear test, is sometimes used. With the headlight and speculum the external auditory canal is inspected and cleared of any obstructing wax or debris. The surgeon uses a wire speculum to retract the eyelids to expose the eyeball. Your eyelids will be opened up using a small instrument called a speculum. 2Ornithology A bright patch of plumage on the wings of certain birds, especially a strip of metallic sheen on the secondary flight feathers of many ducks. Example sentencesExamples The latter is important because dabbling ducks have a coloured area in the wing called the speculum. Females with unpatterned dark bills, an overall dark brown body colour, and a violet speculum with only the trailing edge with white were considered American Black Ducks. Both sexes have a black and white wing-patch, or speculum, that is distinctive in flight. Both sexes have orange feet and a blue speculum, or wing-patch, bordered in white on two sides, best seen in flight. 3A mirror or reflector of glass or metal, especially (formerly) a metallic mirror in a reflecting telescope. Example sentencesExamples If light ‘sees,’ then the speculum which reflects this seeing light can analogically participate in the solar vision that it reflects; it can derive from it its own vision. A headlamp or head mirror and a nasal speculum should be used for optimal visualization. This work of light allows us to see the shapes of the world reflected on the optical speculum. 3.1 short for speculum metal Example sentencesExamples He made his mirrors from speculum metal - four parts copper to one part tin - but had to construct a forge to melt the speculum and cast the disc from which the mirror could be ground. Origin Late Middle English: from Latin, literally 'mirror', from specere 'to look'. Definition of speculum in US English: speculum nounˈspəkyələmˈspəkjələm 1Medicine A metal or plastic instrument that is used to dilate an orifice or canal in the body to allow inspection. Example sentencesExamples The surgeon uses a wire speculum to retract the eyelids to expose the eyeball. An instrument called a speculum, the same as used for a smear test, is sometimes used. With the headlight and speculum the external auditory canal is inspected and cleared of any obstructing wax or debris. Your eyelids will be opened up using a small instrument called a speculum. Using a nasal speculum, your doctor may look inside your nose for signs of allergic disease such as increased nasal secretions, swelling or polyps. 2Ornithology A bright patch of plumage on the wings of certain birds, especially a strip of metallic sheen on the secondary flight feathers of many ducks. Example sentencesExamples Both sexes have orange feet and a blue speculum, or wing-patch, bordered in white on two sides, best seen in flight. Females with unpatterned dark bills, an overall dark brown body colour, and a violet speculum with only the trailing edge with white were considered American Black Ducks. Both sexes have a black and white wing-patch, or speculum, that is distinctive in flight. The latter is important because dabbling ducks have a coloured area in the wing called the speculum. 3A mirror or reflector of glass or metal, especially (formerly) a metallic mirror in a reflecting telescope. Example sentencesExamples If light ‘sees,’ then the speculum which reflects this seeing light can analogically participate in the solar vision that it reflects; it can derive from it its own vision. This work of light allows us to see the shapes of the world reflected on the optical speculum. A headlamp or head mirror and a nasal speculum should be used for optimal visualization. 3.1 short for speculum metal Example sentencesExamples He made his mirrors from speculum metal - four parts copper to one part tin - but had to construct a forge to melt the speculum and cast the disc from which the mirror could be ground. Origin Late Middle English: from Latin, literally ‘mirror’, from specere ‘to look’.
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