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  2. Nabla symbol - Wikipedia

    en.wikipedia.org/wiki/Nabla_symbol

    The nabla is a triangular symbol resembling an inverted Greek delta: [1] or ∇. The name comes, by reason of the symbol's shape, from the Hellenistic Greek word νάβλα for a Phoenician harp, [2] [3] and was suggested by the encyclopedist William Robertson Smith in an 1870 letter to Peter Guthrie Tait.

  3. List of typographical symbols and punctuation marks

    en.wikipedia.org/wiki/List_of_typographical...

    The second is a link to the article that details that symbol, using its Unicode standard name or common alias. (Holding the mouse pointer on the hyperlink will pop up a summary of the symbol's function.); The third gives symbols listed elsewhere in the table that are similar to it in meaning or appearance, or that may be confused with it;

  4. Abracadabra - Wikipedia

    en.wikipedia.org/wiki/Abracadabra

    Abracadabra is of unknown origin, and is first attested in a second-century work of Serenus Sammonicus. [1]Some conjectural etymologies are: [2] from phrases in Hebrew that mean "I will create as I speak", [3] or Aramaic "I create like the word" (אברא כדברא), [4] to etymologies that point to similar words in Latin and Greek such as abraxas [5] or to its similarity to the first four ...

  5. Letter symbolism - Wikipedia

    en.wikipedia.org/wiki/Letter_symbolism

    Letter symbolism is the study of the alphabet as a symbol, exploring its ability to represent analogically, convey meaning, and carry values beyond its practical or material function. It involves examining letters as symbols ( symbology ) or systems ( symbolic ), as well as their capacity for designation, meaning, and potential influence ...

  6. Reproducibility - Wikipedia

    en.wikipedia.org/wiki/Reproducibility

    Reproducibility, closely related to replicability and repeatability, is a major principle underpinning the scientific method.For the findings of a study to be reproducible means that results obtained by an experiment or an observational study or in a statistical analysis of a data set should be achieved again with a high degree of reliability when the study is replicated.

  7. Obsolete and nonstandard symbols in the International ...

    en.wikipedia.org/wiki/Obsolete_and_nonstandard...

    some English phoneticians and phonologists use acute and grave accents as primary and secondary stress symbols. Some linguists [14] use the circumflex as weakened primary stress in compound words and the breve as no stress. these symbols are also written on the English spellings not just other IPA symbols. ̩, ̍: Vertical line below or above ...

  8. Asterisk - Wikipedia

    en.wikipedia.org/wiki/Asterisk

    ) to indicate a word, phrase or sentence that is avoided, questionable or strange, but not necessarily outright ungrammatical. [c] Other sources go further and use several symbols (e.g. the asterisk, question mark, and degree symbol °) to indicate gradations or a continuum of acceptability. [d]

  9. List of Greek and Latin roots in English/P–Z - Wikipedia

    en.wikipedia.org/wiki/List_of_Greek_and_Latin...

    The following is an alphabetical list of Greek and Latin roots, stems, and prefixes commonly used in the English language from P to Z. See also the lists from A to G and from H to O.