the French dictionary 'Larousse' has infuriated right-wing MPs after it altered its definition of marriage to a union of "two persons" rather than "between man and woman".
MPs from the opposition UMP have called for boycotts of the dictionary after accusing it of taking sides in the country's debate on gay marriage.
The 2014 edition of 'Larousse', due to be published in June, defines marriage as a "solemn act between two same-sex or different-sex persons".
Legislation on gay marriage is currently being debated in parliament.
"It's incredible, this is not normal, the law has not passed yet," said Laurent Wauquiez, the vice-president of the UMP. (© Daily Telegraph, London)