Hours & Admission Open every day except Tuesday. Following the terror attacks in Paris on November 13, 2015, the Louvre is strictly applying the security measures decided by the French authorities to ensure the safety of our visitors. It is strongly recommanded not to bring suitcases and luggage to the museum. Only luggage not exceeding 55 cm x 35 cm x 20 cm will be accepted.
deletion. 1  an act or instance of deleting. 2  the state of being deleted. 3  a deleted word, passage, etc. 4  Genetics. a type of chromosomal aberration in which a segment of the chromosome is removed or lost.
intron inÂ·tron (Ä­n'trÅn) n. A segment of a gene situated between exons that does not function in coding for protein synthesis. After transcription of a gene to messenger RNA, the transcriptions of introns are removed, and the exons are spliced together by enzymes before translation and assembly of amino acids into proteins. Compare exon.