English edit

Etymology edit

sub- +‎ collection

Noun edit

subcollection (plural subcollections)

  1. A subset of a collection.
    • 2018, Matthew Z. Wood, Comic Book Collections and Programming: A Practical Guide for Librarians:
      Humor books are easy to catalog as a part of a comics collection—treat them as a subcollection of comics (aka fiction) and group them first by creator, then by series title, paying attention to volume numbers and/or dates of publication.