1. a separately published installment of a book or other printed work
Usage: formal; publishing
2. a small bundle or cluster
Usage: technical; biology

Examples

• The encyclopedia was published in monthly fascicules over two years.
• Each fascicule of the series contained three chapters.
• Subscribers eagerly awaited the next fascicule of the botanical guide.
• The publisher released the final fascicule of the collected works.
• The nerve fascicule was clearly visible under the microscope.
• Botanists studied the fascicule of leaves at the branch tip.