We found 30 dictionaries that define the word midpoint:

General (22 matching dictionaries)

1. midpoint: Longman Dictionary of Contemporary English
2. midpoint: Merriam-Webster
3. midpoint: Oxford Learner's Dictionaries
4. midpoint: American Heritage Dictionary of the English Language
5. midpoint: Collins English Dictionary
6. midpoint: Vocabulary.com
7. Midpoint, midpoint: Wordnik
8. midpoint: Cambridge Advanced Learner's Dictionary
9. midpoint: Wiktionary
10. midpoint: Webster's New World College Dictionary, 4th Ed.
11. midpoint: The Wordsmyth English Dictionary-Thesaurus
12. midpoint: Infoplease Dictionary
13. midpoint: Dictionary.com
14. midpoint: Cambridge Essential American English Dictionary
15. Midpoint (astrology), Midpoint (company), Midpoint (disambiguation), Midpoint (geometry), Midpoint: Wikipedia, the Free Encyclopedia
16. midpoint: Rhymezone
17. midpoint: AllWords.com Multi-Lingual Dictionary
18. midpoint: FreeDictionary.org
19. midpoint: Mnemonic Dictionary
20. midpoint: TheFreeDictionary.com

Business (1 matching dictionary)

21. Midpoint (geometry), midpoint: Legal dictionary

Computing (1 matching dictionary)

22. Midpoint (geometry), midpoint: Encyclopedia

Science (5 matching dictionaries)

23. Archaeology Wordsmith (No longer online)
24. Midpoint: LITHICS-NET's Glossary of Lithics Terminology
25. Midpoint: Eric Weisstein's World of Mathematics
26. midpoint, midpoint, midpoint: PlanetMath Encyclopedia
27. Anthropology dictionary (No longer online)

Tech (1 matching dictionary)

28. Schlumberger Oilfield Glossary (No longer online)

(Note: See midpoints as well.)

Definitions from Wiktionary ( ) ▸ noun:  A point equidistant between two extremes. ▸ noun:  (mathematics) A point which divides a line segment into two lines of equal length. Similar: Centre, center, centerpoint, midpoint theorem, endpoint, end point, mediatrix, median, gyromidpoint, extreme point, more... Opposite: antimean, antimedian Types: mean, median, mode, more... Phrases: class midpoint, midpoint rule, midpoint (geometry), Geographical midpoint of Europe, Midpoint circle algorithm, more... Adjectives: exact, common, neutral, interval, vertical, same, precise, true, nearest, theoretical, very Colors:     gray,     teal,     olive,     mauve,     taupe, more... ▸ Words similar to midpoint ▸ Usage examples for midpoint ▸ Idioms related to midpoint ▸ Wikipedia articles (New!) ▸ Popular adjectives describing midpoint ▸ Words that often appear near midpoint ▸ Rhymes of midpoint ▸ Invented words related to midpoint