anomaloscope
/əˈnɑməloʊskoʊp/
Word Rarity
Very rare
Frequency: 0.00 in modern English
18
Scrabble Score
12
Letters
4
Syllables
9
Unique Chars
Meaning
noun
An instrument used to test for color blindness by measuring quantitative and qualitative anomalies in color perception.
Example Sentences
- "The anomaloscope contains a red-green scale from which may be read a number that is proportional to the amount of red in the mixture field, and a Y scale from which is read a number proportional to the luminance of the test color. In testing an observer, the examiner notes the scale values, which then are available for further transformation as noted for the Nagel anomaloscope."
- "For the differentiation between color vision defects of retinal origin and color defects as a result of optic nerve disease the determination of the neutral zone and anomaloscope examination are important."
- "Anomaloscopes are instruments that assess the ability to make metametric matches. The results are used for definitive diagnosis and quantitative assessment of color vision status. Anomoloscopes are much more difficult to administer than pseudoisochromatic plates and arrangement tests. The first anomaloscope was designed by Nagel and is based on the color match known as the Rayleigh equation, that is, R + G = Y."
Etymology
Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ᾰ̓- (ă-) Proto-Indo-European *sem- Proto-Indo-European *sem-h₂-lo-sder. Ancient Greek ὁμᾰλός (homălós) Ancient Greek ᾰ̓νώμᾰλος (ănṓmălos) Proto-Indo-European *speḱ- Proto-Indo-European *-yeti Proto-Indo-European *spéḱyeti Proto-Hellenic *sképt͏̌omai Ancient Greek σκέπτομαι (sképtomai) Proto-Indo-European *-os Proto-Indo-European *-ós Proto-Indo-European *-ós Proto-Hellenic *-ós ▲ Ancient Greek -ος (-os)influ. Ancient Greek -ός (-ós) Ancient Greek σκοπός (skopós) Proto-Indo-European *-eti Proto-Indo-European *-eyéti Proto-Indo-European *-esyéti Proto-Indo-European *-éh₁ti Proto-Indo-European *-yeti Proto-Indo-European *-éh₁yeti Proto-Indo-European *-yeti Proto-Indo-European *-éyeti Ancient Greek -έω (-éō) Ancient Greek σκοπέω (skopéō) German Anomaloskopder. English anomaloscope From German Anomaloskop, from Ancient Greek ἀνώμαλος (anṓmalos, “irregular, uneven”) (from Ancient Greek ᾰ̓- (ă-, “a-, prefix meaning ‘not’”) + ὁμᾰλός (homălós, “even, level”)) + σκοπέω (skopéō, “to look, to look at; to examine, to inspect”) (from Proto-Indo-European *sḱop, ultimately from *speḱ- (“to see; to look, to observe”)).
Origin
Word Breakdown
- Root: Anomaloskop, ἀνώμαλος, ᾰ̓-, *sḱop
Regional Pronunciation
- American English: /əˈnɑməloʊskoʊp/
- British English: /əˈnɒmələʊskəʊp/