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phyllotaxis

noun/ˌfɪloʊˈtæksɪs/

the arrangement of leaves on a plant stem

The phyllotaxis of the sunflower displays a striking Fibonacci sequence, which allows for optimal exposure to sunlight.

leaf arrangementfoliage patternleaf positioning
word origin — From Greek 'phyllon' meaning 'leaf' and 'taxis' meaning 'arrangement'.

Word Ultra — Set 75

Set 75 of Word Ultra covers 5 words: phyllotaxis, gegenschein, diapason, metonymy, bezonian. Each entry below includes its definition, an example sentence, and synonyms — practice them with the interactive cards above.

  1. phyllotaxis · noun/ˌfɪloʊˈtæksɪs/

    the arrangement of leaves on a plant stem

    The phyllotaxis of the sunflower displays a striking Fibonacci sequence, which allows for optimal exposure to sunlight.

    Synonyms: leaf arrangement, foliage pattern, leaf positioning

    Origin: From Greek 'phyllon' meaning 'leaf' and 'taxis' meaning 'arrangement'.

  2. gegenschein · noun/ˈɡɛɡənˌʃaɪn/

    a faint glow in the night sky opposite the sun caused by the reflection of sunlight off interplanetary dust

    On clear nights, the gegenschein can be seen stretching across the sky, a subtle reminder of the interplanetary dust swirling through space.

    Synonyms: counterglow, opposition glow, zodiacal light

    Origin: From the German 'Gegenschein', meaning 'opposite shine', combining 'gegen' (against, opposite) and 'schein' (shine, light).

  3. diapason · noun/ˌdaɪəˈpeɪˌzɑn/

    the entire range or extent of something

    The artist's new exhibition showcases a diapason of colors that captivates every visitor.

    Synonyms: range, spectrum, scope

    Origin: from Middle French 'diapason', derived from Latin 'diapason', from Greek 'diapasōn' meaning 'through all'.

  4. metonymy · noun/məˈtɑnəmi/

    a figure of speech in which one word or phrase is substituted for another with which it is closely associated

    In literature, metonymy is often employed to create vivid imagery and develop themes by using a part to represent the whole.

    Synonyms: metonym, synecdoche

    Origin: from Greek metōnymia, from meta- 'change' + onuma 'name'

  5. bezonian · noun/bɪˈzoʊ.ni.ən/

    a person who is untrustworthy or deceptive

    Despite his charming demeanor, everyone knew he was a bezonian, always scheming to take advantage of the unsuspecting.

    Synonyms: fraud, deceiver, trickster

    Origin: The term Bezonians is derived from 'Bezonia,' a fictional land described by 17th-century English author Thomas Browne in his work, signifying a place associated with deception or untrustworthiness.