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  2. Greek alphabet - Wikipedia

    en.wikipedia.org/wiki/Greek_alphabet

    When the letters were adopted by the Greeks, most of the Phoenician names were maintained or modified slightly to fit Greek phonology; thus, ʾaleph, bet, gimel became alpha, beta, gamma. The Greek names of the following letters are more or less straightforward continuations of their Phoenician antecedents.

  3. Greek letters used in mathematics, science, and engineering

    en.wikipedia.org/wiki/Greek_letters_used_in...

    the stack alphabet in the formal definition of a pushdown automaton, or the tape-alphabet in the formal definition of a Turing machine; the Feferman–Schütte ordinal Γ 0; represents: the specific weight of substances; the lower incomplete gamma function; the third angle in a triangle, opposite the side c

  4. Acrophony - Wikipedia

    en.wikipedia.org/wiki/Acrophony

    Acrophony (/ ə ˈ k r ɒ f ə n i /; Ancient Greek: ἄκρος, romanized: akros, lit. 'uppermost' + φωνή phone 'sound') is the naming of letters of an alphabetic writing system so that a letter's name begins with the letter itself.

  5. NATO phonetic alphabet - Wikipedia

    en.wikipedia.org/wiki/NATO_phonetic_alphabet

    This is an accepted version of this page This is the latest accepted revision, reviewed on 31 December 2024. Letter names for unambiguous communication Not to be confused with International Phonetic Alphabet. Alphabetic code words A lfa N ovember B ravo O scar C harlie P apa D elta Q uebec E cho R omeo F oxtrot S ierra G olf T ango H otel U niform I ndia V ictor J uliett W hiskey K ilo X ray L ...

  6. Group A nerve fiber - Wikipedia

    en.wikipedia.org/wiki/Group_A_nerve_fiber

    There are four subdivisions of group A nerve fibers: alpha (α) Aα; beta (β) Aβ; , gamma (γ) Aγ, and delta (δ) Aδ. These subdivisions have different amounts of myelination and axon thickness and therefore transmit signals at different speeds. Larger diameter axons and more myelin insulation lead to faster signal propagation.

  7. Gamma delta T cell - Wikipedia

    en.wikipedia.org/wiki/Gamma_delta_T_cell

    Gamma delta T cells (γδ T cells) are T cells that have a γδ T-cell receptor (TCR) on their surface. Most T cells are αβ (alpha beta) T cells with TCR composed of two glycoprotein chains called α (alpha) and β (beta) TCR chains. In contrast, γδ T cells have a TCR that is made up of one γ (gamma) chain and one δ (delta) chain.

  8. What do teens mean when they say ‘sigma’? - AOL

    www.aol.com/news/teens-mean-sigma-000158935.html

    Lindsay added, “So they have the ‘alpha’ which is the most successful, the best looking and then they have ‘sigma’ which is the same thing as an alpha but humbler.” Another definition ...

  9. High school fraternities and sororities - Wikipedia

    en.wikipedia.org/wiki/High_school_fraternities...

    Omega Gamma Delta, (ΩΓΔ) was founded in 1902 in Brooklyn, New York. It currently operates chapters for adults. Omega Nu (ΩΝ) was founded in 1897 at San Jose High School. The group continues with twelve active chapters as a service organization. [1] Phi Sigma Beta, (ΦΣΒ) was founded in 1910. It became ΤΔΦ - Tau Delta Phi collegiate ...