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Wordnet 3.0

NOUN (1)

1. a radioactive element of the alkali-metal group discovered as a disintegration product of actinium;
[syn: francium, Fr, atomic number 87]



WordNet (r) 3.0 (2006):

Fr
    n 1: a radioactive element of the alkali-metal group discovered
         as a disintegration product of actinium [syn: francium,
         Fr, atomic number 87]


The Free On-line Dictionary of Computing (30 December 2018):

fr

    The country code for France.

   (1999-01-27)