fascikels

Fascicle (plural fascicles) is a term used across several disciplines to describe a bundle, cluster, or a discreet installment of a larger work. It derives from Latin fasciculus, meaning a little bundle.

In botany, a fascicle describes a bundle of leaves or needles held together by a common base. In conifers, pine needles occur in fascicles of 2–5, defined by a basal sheath; other plant groups show clusters of leaves or vascular elements forming fascicles.

In anatomy, a fascicle is a bundle of muscle fibers or nerve fibers surrounded by connective tissue; in the peripheral nervous system, nerve fibers run in fascicles; in the brain and spinal cord, related structures are often called fasciculi.

In publishing, a fascicle is an installment of a book or periodical published separately from the complete work, often before the entire work is available. This format is common for encyclopedias, dictionaries, and long-running serials that are issued in parts.

Etymology and usage: the term comes from Latin fasciculus, a little bundle. In English, the usual plural is fascicles; in some contexts, fasciculi is used. Fascikels is not standard English and may appear only as a loan form in non-English texts.