xi

(zī, sī, ksē)
n.

1. The 14th letter of the Greek alphabet.
2. See xi baryon.

[Greek xei, xī.]

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(zī, sī, ksē)
n.

(Symbol ξ) The 14th letter of the Greek alphabet.

14th letter of the Greek alphabet

symbol: ξ (lower case) or Ξ (upper case); the fourteenth letter of the Greek alphabet. For uses see Greek alphabet.

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See words rhyming with "xi."