eta

noun — 3 senses

eta

noun

UK /ˈiːtə/ · US /ˈeɪtə/

Etymology From Ancient Greek ἦτα (êta).

1

The seventh letter of the Modern Greek alphabet, the eighth in Old Greek.

  • Greek was an exercise in making the familiar strange. Its alphabet mapped onto the Roman alphabet, but only partly so, and often letters did not sound how they looked — a rho (Ρ) was not a P, and an eta (Η) was not an H.2022, R. F. Kuang, Babel, HarperVoyager, page 25:
2

Natural sciences, Physical sciences, Physics Particle A kind of electrically neutral meson having zero spin and isospin.

Derived terms
Dirichlet eta function, eta conversion, eta meson, eta prime, eta reduction
Related terms
heta

eta

noun

/ˈeɪtə/

Etymology From Japanese 穢多 (“full of filth”) (literal translation, now considered derogatory in Japan).

1

A social outcast in Japan who is subjected to menial work, making up a class or caste of such people.

Related terms
burakumin

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.