β

See also: Β, β̞, ẞ, ß, 阝, and Appendix:Variations of "b"

β U+03B2, β GREEK SMALL LETTER BETA ← α [U+03B1] Greek and Coptic γ → [U+03B3]

Translingual

Pronunciation

• IPA

  (file)

Symbol

ᵝ U+1D5D, ᵝ MODIFIER LETTER SMALL BETA ← ᵜ [U+1D5C] Phonetic Extensions ᵞ → [U+1D5E]

β

1. The second letter of the Greek alphabet.
2. (IPA) voiced bilabial fricative.
3. (IPA) (superscript) compressed vowel.
4. (chemistry) Used in chemical nomenclature to refer to the second of several isomers, positions or variations.

   β-carotene is the most well-known isomer of tetraterpene hydrocarbons, C₄₀H₅₆.

5. (topology) Stone–Čech compactification
6. (physics) beta ray, beta particle, beta radiation
7. (relativity) speed parameter, $\beta ={\frac {v}{c}}$

   $\gamma =(1-\beta ^{2})^{-{\frac {1}{2}}}=(1-{\frac {v^{2}}{c^{2}}})^{-{\frac {1}{2}}}$

See also

• β on Wikipedia.Wikipedia

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Albanian

Pronunciation

IPA^(key): /v(ə)/

Letter

β (v) (upper case Β, lower case β)

1. The 2nd letter of the Arvanitic Albanian Greek-script alphabet.

See also

• (Greek script letters) Α α, Β β, Ƃ ƅ, Γ γ, Γj γj, Δ δ, D d, Ε ε, Ε̱ ε̱, Ζ ζ, Ζ̇ ζ̇, Θ θ, Ι ι, J j, Κ κ, Κ̇ κ̇, Λ λ, ΛΛ λλ, Λ̇ λ̇, Μ μ, Ν ν, Ν̇ ν̇, Ο ο, Π π, Ρ ρ, Ρ̇ ρ̇, Σ σ, Σ̈ σ̈, Τ τ, Ȣ ȣ, Υ υ, Φ φ, Χ χ, Χ̇ χ̇, ΤΣ τσ, ΤΣ̈ τσ̈, DΣ dσ, DΣ̈ dσ̈
• (Latin-script letters) shkronjë; A a, B b, C c, Ç ç, D d, Dh dh, E e, Ë ë, F f, G g, Gj gj, H h, I i, J j, K k, L l, Ll ll, M m, N n, Nj nj, O o, P p, Q q, R r, Rr rr, S s, Sh sh, T t, Th th, U u, V v, X x, Xh xh, Y y, Z z, Zh zh

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Ancient Greek

Etymology

Derived from its majuscule counterpart Β, from the Phoenician letter 𐤁, beth.

Letter

β • (b) (lowercase, uppercase Β)

1. Lower-case beta (βήτα), the second letter of the ancient Greek alphabet. It represented the voiced bilabial plosive: /b/. It is preceded by α and followed by γ.

Derived terms

See also beta

• β' (v'), ,β (,v)
• b, B (Roman)
• б, Б (Cyrillic)
• в, В (Cyrillic)
• ⲃ, Ⲃ (Coptic)
• β-particle

See also

• (Greek-script letters) Α α (A a), Β β (B b), Γ γ (G g), Δ δ (D d), Ε ε (E e), Ζ ζ (Z z), Η η (Ē ē), Θ θ (Th th), Ι ι (I i), Κ κ (K k), Λ λ (L l), Μ μ (M m), Ν ν (N n), Ξ ξ (X x), Ο ο (O o), Π π (P p), Ρ ρ (R r), Σ σ ς (S s s), Τ τ (T t), Υ υ (U u), Φ φ (Ph ph), Χ χ (Kh kh), Ψ ψ (Ps ps), Ω ω (Ō ō)
• (punctuation) · ;
• (diacritics) ᾿ ῾ ´ ` ῀ ¨ ¯ ˘

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Greek

Letter

β • (v) (lowercase, uppercase Β)

1. Lower-case beta (βήτα), the second letter of the modern Greek alphabet. It represents the voiced labiodental fricative: /v/. It is preceded by α and followed by γ.

Derived terms

• β' (v', “two, 2”)
• ,β (,v, “two thousand, 2,000”)

See also

• Appendix:Greek alphabet
• (Greek-script letters) Α α (A a), Β β (B b), Γ γ (G g), Δ δ (D d), Ε ε (E e), Ζ ζ (Z z), Η η (Ē ē), Θ θ (Th th), Ι ι (I i), Κ κ (K k), Λ λ (L l), Μ μ (M m), Ν ν (N n), Ξ ξ (X x), Ο ο (O o), Π π (P p), Ρ ρ (R r), Σ σ ς (S s s), Τ τ (T t), Υ υ (U u), Φ φ (Ph ph), Χ χ (Kh kh), Ψ ψ (Ps ps), Ω ω (Ō ō)
• (punctuation) · ;
• (diacritics) ᾿ ῾ ´ ` ῀ ¨ ¯ ˘