| Term | Brief description | Example(s) |
|---|---|---|
| Collection | A composite data type | [1 2], {:a 1}, #{1 2}, and lists and arrays |
| Sequential | Ordered series of values | [1 2 3 4], (1 2 3 4) |
| Sequence | A sequential collection that may or may not exist yet | The result of (map a-fun a-collection) |
| Seq | Simple API for navigating collections | first, rest, nil, and () |
| clojure.core/seq | A function that returns an object implementing the seq API | (seq []) ;;⇒ nil and (seq [1 2]) ;;⇒ (1 2) |