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  2. Visual perception - Wikipedia

    en.wikipedia.org/wiki/Visual_perception

    Visual perception is the ability to interpret the surrounding environment through photopic vision (daytime vision), color vision, scotopic vision (night vision), and mesopic vision (twilight vision), using light in the visible spectrum reflected by objects in the environment.

  3. Velar consonant - Wikipedia

    en.wikipedia.org/wiki/Velar_consonant

    In both regions the languages retain a labialized velar series (e.g. [kʷ], [kʼʷ], [xʷ], [w] in the Pacific Northwest) as well as uvular consonants. [8] In the languages of those families that retain plain velars, both the plain and labialized velars are pre-velar, perhaps to make them more distinct from the uvulars which may be post-velar ...

  4. Place of articulation - Wikipedia

    en.wikipedia.org/wiki/Place_of_articulation

    Terms like pre-velar (intermediate between palatal and velar), post-velar (between velar and uvular), and upper vs. lower pharyngeal may be used to specify more precisely where an articulation takes place. However, although a language may contrast pre-velar and post-velar sounds, it does not also contrast them with palatal and uvular sounds (of ...

  5. Voiced velar approximant - Wikipedia

    en.wikipedia.org/wiki/Voiced_velar_approximant

    Pre-velar. Common allophone of /r/ in the syllable coda, where it contrasts with . The bunching and pharyngealization may be lost in connected speech, resulting in a semivowel such as or [ə̯]. [20] See Dutch phonology: Standard Northern [19] Pre-velar. Common allophone of /r/ in the syllable coda, where it contrasts with . [19] See Dutch ...

  6. Voiced velar fricative - Wikipedia

    en.wikipedia.org/wiki/Voiced_velar_fricative

    The voiced velar fricative is a type of consonantal sound that is used in various spoken languages. It is not found in most varieties of Modern English but existed in Old English . [ 1 ] The symbol in the International Phonetic Alphabet that represents this sound is ɣ , a Latinized variant of the Greek letter gamma , γ , which has this sound ...

  7. Voiced velar plosive - Wikipedia

    en.wikipedia.org/wiki/Voiced_velar_plosive

    The voiced velar plosive or stop is a type of consonantal sound used in many spoken languages. Some languages have the voiced pre-velar plosive , [ 1 ] which is articulated slightly more front compared with the place of articulation of the prototypical velar plosive, though not as front as the prototypical palatal plosive .

  8. American teenager Learner Tien stuns No. 5 Daniil ... - AOL

    www.aol.com/american-teenager-learner-tien-stuns...

    There's been a stunner at the Australian Open, and it came from an American teenager. Qualifier and 19-year-old Learner Tien beat No. 5-ranked and three-time Australian Open finalist Daniil ...

  9. Trill consonant - Wikipedia

    en.wikipedia.org/wiki/Trill_consonant

    A partially devoiced uvular or pre-uvular (i.e. between velar and uvular) trill [ʀ̝̊] with some frication occurs as a coda allophone of /ʀ/ in the Limburgish dialects of Maastricht and Weert. [6] [7] Voiceless trills occur phonemically in e.g. Welsh and Icelandic. (See also voiceless alveolar trill, voiceless retroflex trill, voiceless ...