iris scanning
1
6.0
- noun
- Specialized
:
escaneo de iris
- I learned that iris scanning is becoming a common method for ensuring accurate identification of individuals.
Examples
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Biometrics, iris scanning, facial recognition.
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Similarly, iris scanning is close to ideal in terms of accuracy and effort, but the cost is high and the technology is somewhat intrusive.
Academic text (2003) -
The iris scanning system verified the visitor's identity before granting access to the building.
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Many modern smartphones now feature iris scanning technology to enhance user security.
Synonyms
6
4.1
The use of body features like fingerprints, face or voice to check who someone is
1
5.3
A way of identifying people automatically using unique body traits like fingerprints or face
1
4.3
A way to check who someone is using body features like a fingerprint or face
The use of body features like fingerprints or face scans to identify people
How Accurate
- Specialized
- Specialized
1
6.0
- Specialized
- Specialized
2
3.1
Surface Forms
Morphology
The meaning is directly and compositionally derived from 'iris' (the eye part) + 'scanning' (the process of using a device to read), so a learner who knows both words can infer it refers to scanning the iris to identify someone. This noun + gerund construction is a straightforward, cross-linguistically common descriptive pattern, making it immediately comprehensible to a B1 learner.
Etymology
Iris scanning is named for the simple picture of a machine looking at the colored part of the eye, the iris, and scanning its tiny lines and dots. Because each person's iris pattern is different, the scan can 'identify' someone, so the term now means the process of identifying a person by their eye patterns.