Fascicles are sections of a book, usually a reference work, that because of its length, is issued in parts so that the information may be made available to the public as soon as possible rather than waiting years or decades to complete the entire work. The Oxford English Dictionary was published in fascicles over many years, as was the Dictionary of American English.
The term, fascicle, is derived from the Latin word for "a bundle",
Fascicles, can refer to sections of a book, usually a reference work, that because of its length, is issued in parts so that the information may be made available to the public as soon as possible rather than waiting years or decades to complete the entire work.
Fascicle may also mean a bundle of skeletal muscle fibers surrounded by connective tissue.