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  2. Keloid - Wikipedia

    en.wikipedia.org/wiki/Keloid

    [citation needed] He called them cancroïde, later changing the name to chéloïde to avoid confusion with cancer. The word is derived from the Ancient Greek χηλή, chele, meaning "crab pincers", and the suffix -oid, meaning "like". In the 19th century it was known as the "Keloid of Alibert" as opposed to "Addison’s keloid" . [24]

  3. List of particles - Wikipedia

    en.wikipedia.org/wiki/List_of_particles

    Fermions have half-integer spin; for all known elementary fermions this is ⁠ 1 / 2 ⁠. All known fermions except neutrinos, are also Dirac fermions; that is, each known fermion has its own distinct antiparticle. It is not known whether the neutrino is a Dirac fermion or a Majorana fermion. [4] Fermions are the basic building blocks of all ...

  4. Colloid - Wikipedia

    en.wikipedia.org/wiki/Colloid

    Various types of colloids are recognised: inorganic colloids (e.g. clay particles, silicates, iron oxy-hydroxides), organic colloids (humic and fulvic substances). When heavy metals or radionuclides form their own pure colloids, the term " eigencolloid " is used to designate pure phases, i.e., pure Tc(OH) 4 , U(OH) 4 , or Am(OH) 3 .

  5. Hypertrophic scar - Wikipedia

    en.wikipedia.org/wiki/Hypertrophic_scar

    A hypertrophic scar is a cutaneous condition characterized by deposits of excessive amounts of collagen which gives rise to a raised scar, but not to the degree observed with keloids. [1] Like keloids, they form most often at the sites of pimples, body piercings, cuts and burns. They often contain nerves and blood vessels.

  6. Choanocyte - Wikipedia

    en.wikipedia.org/wiki/Choanocyte

    Choanocytes (also known as "collar cells") are cells that line the interior of asconoid, syconoid and leuconoid body types of sponges that contain a central flagellum, or cilium, surrounded by a collar of microvilli which are connected by a thin membrane. They make up the choanoderm, a type of cell layer found in sponges.

  7. Cell (biology) - Wikipedia

    en.wikipedia.org/wiki/Cell_(biology)

    Cells are broadly categorized into two types: eukaryotic cells, which possess a nucleus, and prokaryotic cells, which lack a nucleus but have a nucleoid region. Prokaryotes are single-celled organisms such as bacteria , whereas eukaryotes can be either single-celled, such as amoebae , or multicellular , such as some algae , plants , animals ...

  8. Cytoplasm - Wikipedia

    en.wikipedia.org/wiki/Cytoplasm

    The inclusions are small particles of insoluble substances suspended in the cytosol. A huge range of inclusions exist in different cell types, and range from crystals of calcium oxalate or silicon dioxide in plants, [ 15 ] [ 16 ] to granules of energy-storage materials such as starch , [ 17 ] glycogen , [ 18 ] or polyhydroxybutyrate . [ 19 ]

  9. Biomolecular condensate - Wikipedia

    en.wikipedia.org/wiki/Biomolecular_condensate

    The primordial soup theory of the origin of life, proposed by Alexander Oparin in Russian in 1924 (published in English in 1936) [9] and by J.B.S. Haldane in 1929, [10] suggested that life was preceded by the formation of what Haldane called a "hot dilute soup" of "colloidal organic substances", and which Oparin referred to as 'coacervates ...