We found 28 dictionaries that define the word helicoid:

General (17 matching dictionaries)

1. helicoid: Merriam-Webster
2. helicoid: Oxford Learner's Dictionaries
3. helicoid: American Heritage Dictionary of the English Language
4. helicoid: Collins English Dictionary
5. helicoid: Wordnik
6. helicoid: Wiktionary
7. helicoid: Webster's New World College Dictionary, 4th Ed.
8. helicoid: The Wordsmyth English Dictionary-Thesaurus
9. helicoid: Infoplease Dictionary
10. helicoid: Dictionary.com
11. Helicoid: Wikipedia, the Free Encyclopedia
12. Helicoid: Online Plain Text English Dictionary
13. helicoid: Webster's Revised Unabridged, 1913 Edition
14. Helicoid: AllWords.com Multi-Lingual Dictionary
15. helicoid: FreeDictionary.org
16. helicoid: The Phrontistery - A Dictionary of Obscure Words
17. helicoid: TheFreeDictionary.com

Business (1 matching dictionary)

18. helicoid: Legal dictionary

Computing (1 matching dictionary)

19. helicoid: Encyclopedia

Medicine (4 matching dictionaries)

20. helicoid: Merriam-Webster Medical Dictionary
21. Dorland's Illustrated Medical Dictionary (No longer online)
22. online medical dictionary (No longer online)
23. helicoid: Medical dictionary

Science (5 matching dictionaries)

24. Helicoid: Eric Weisstein's World of Mathematics
25. Botanical Terms (No longer online)
26. Bryological (No longer online)
27. Helicoid: The Orchid Lady's Illustrated Orchid Encyclopedia
28. helicoid: PlanetMath Encyclopedia

Definitions from Wiktionary (helicoid) ▸ adjective:  Having the form of a flattened helix. ▸ noun:  (mathematics) A minimal surface in the form of a flattened helix Similar: heliciform, helictical, helical, helicoidal, hemihelical, helixlike, superhelical, bihelical, spiral, quasihelical, more... Opposite: straight, linear, planar Phrases: right helicoid, helicoid cyme, helicoid endosteal implant, helicoid parabola, more... Adjectives: right, oblique, involute, developable, hand, lower, cylindrical, common, convolute, conical, upper ▸ Words similar to helicoid ▸ Usage examples for helicoid ▸ Idioms related to helicoid ▸ Wikipedia articles (New!) ▸ Popular adjectives describing helicoid ▸ Popular nouns described by helicoid ▸ Words that often appear near helicoid ▸ Rhymes of helicoid ▸ Invented words related to helicoid