xi

Meaning

  1. The 14th letter of Classical and Modern Greek. The 15th in Ancient and Old Greek.
  2. (particle) Either of a pair of hyperons having spin 1/2, which decay into a lambda particle and a pion.

Frequency

C2
Pronounced as (IPA)
/zaɪ/
Etymology

From Ancient Greek ξεῖ (xeî), ξῖ (xî).

Notes

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