upper boundaries
upper boundaries is the plural of upper boundary.
Meaning of upper boundary
Noun
upper boundary (plural upper boundaries)
- The most ancient time encompassed by a given period of time.
- The most recent time encompassed by a given geological period.
Questions about upper boundaries
- What is upper boundaries the plural of?
- Upper boundaries is the plural of upper boundary.
Words near upper boundaries in the dictionary
Source and license
Adapted from Wiktionary: upper boundaries (page history and authors); upper boundary (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “upper boundaries.” Word.ws, https://word.ws/upper_boundaries. Based on Wiktionary, CC BY-SA 4.0.
