While the pronunciation \ˈlī-ˌbrer-ē\ is the most frequent variant in the United States, the other variants are not uncommon. The contraction \ˈlī-brē\ and the dissimilated form \ˈlī-ˌber-ē\ result from the relative difficulty of repeating \r\ in the same syllable or successive syllables; our files contain citations for these variants from educated speakers, including college presidents and professors, as well as with somewhat greater frequency from less educated speakers.
: a collection of cloned DNA fragments that are maintained in a suitable cellular environment and that represent the genetic material of a particular organism or tissue <inserting segments from a library of human DNA into yeast cells—Science News>
Collection of information resources in print or in other forms that is organized and made accessible for reading or study. The word derives from the Latin liber (book). The origin of libraries lies in the keeping of written records, a practice that dates at least to the 3rd millennium BC in Babylonia. The first libraries as repositories of books were those of the Greek temples and those established in conjunction with the Greek schools of philosophy in the 4th century BC. Today's libraries frequently contain periodicals, microfilms, tapes, videos, compact discs, and other materials in addition to books. The growth of on-line communications networks has enabled library users to search electronically linked databases worldwide. See alsolibrary science.