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  2. Thesaurus - Wikipedia

    en.wikipedia.org/wiki/Thesaurus

    Thesaurus Linguae Latinae. A modern english thesaurus. A thesaurus (pl.: thesauri or thesauruses), sometimes called a synonym dictionary or dictionary of synonyms, is a reference work which arranges words by their meanings (or in simpler terms, a book where one can find different words with similar meanings to other words), [1] [2] sometimes as a hierarchy of broader and narrower terms ...

  3. Pneumonoultramicroscopicsilicovolcanoconiosis - Wikipedia

    en.wikipedia.org/wiki/Pneumonoultramicroscopicsi...

    Pneumono­ultra­micro­scopic­silico­volcano­coniosis is the longest word in the English language. The word can be analysed as follows: Pneumono: from ancient Greek (πνεύμων, pneúmōn) which means lungs; ultra: from Latin, meaning beyond; micro and scopic: from ancient Greek, meaning small looking, referring to the fineness of ...

  4. Aspergillus - Wikipedia

    en.wikipedia.org/wiki/Aspergillus

    Viewing the fungi under a microscope, Micheli was reminded of the shape of an aspergillum (holy water sprinkler), from Latin spargere (to sprinkle), and named the genus accordingly. [ 2 ] [ 3 ] Aspergillum is an asexual spore-forming structure common to all Aspergillus species; around one-third of species are also known to have a sexual stage ...

  5. Acanthocyte - Wikipedia

    en.wikipedia.org/wiki/Acanthocyte

    Acanthocytes, from peripheral blood, under light microscopy. Note the irregularly shaped, non-circular cells in the image. Acanthocyte (from the Greek word ἄκανθα acantha, meaning 'thorn'), in biology and medicine, refers to an abnormal form of red blood cell that has a spiked cell membrane, due to thorny projections.

  6. Synonym - Wikipedia

    en.wikipedia.org/wiki/Synonym

    Synonym list in cuneiform on a clay tablet, Neo-Assyrian period [1] A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. [2] For example, in the English language, the words begin, start, commence, and initiate are all synonyms of one another: they are ...

  7. Synonym (taxonomy) - Wikipedia

    en.wikipedia.org/wiki/Synonym_(taxonomy)

    In botanical nomenclature, a synonym is a scientific name that applies to a taxon that now goes by a different scientific name. [1] For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called Pinus abies.

  8. Microscopy - Wikipedia

    en.wikipedia.org/wiki/Microscopy

    Antonie van Leeuwenhoek (1632–1723). The field of microscopy (optical microscopy) dates back to at least the 17th-century.Earlier microscopes, single lens magnifying glasses with limited magnification, date at least as far back as the wide spread use of lenses in eyeglasses in the 13th century [2] but more advanced compound microscopes first appeared in Europe around 1620 [3] [4] The ...

  9. Animalcule - Wikipedia

    en.wikipedia.org/wiki/Animalcule

    Animalcule (Latin for 'little animal'; from animal and -culum) is an archaic term for microscopic organisms that included bacteria, protozoans, and very small animals.The word was invented by 17th-century Dutch scientist Antonie van Leeuwenhoek to refer to the microorganisms he observed in rainwater.