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 place where literary or reference materials (as books, manuscripts, recordings, or films) are kept for use but are not for sale
: a collection of literary or reference materials <They have a large personal library.>
Medical Definition of LIBRARY
: 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>