We found 9 dictionaries that define the word megaspores:

General (6 matching dictionaries)

1. megaspores: Merriam-Webster
2. megaspores: Collins English Dictionary
3. megaspores: Vocabulary.com
4. megaspores: Wiktionary
5. megaspores: Dictionary.com
6. megaspores: TheFreeDictionary.com

Computing (1 matching dictionary)

7. megaspores: Encyclopedia

Medicine (1 matching dictionary)

8. megaspores: Merriam-Webster Medical Dictionary

Science (1 matching dictionary)

9. Agricultural Thesaurus and Glossary (No longer online)

(Note: See megaspore as well.)

Definitions from Wiktionary (megaspore) ▸ noun:  (botany) The larger spore of a heterosporous plant, typically producing a female gametophyte ▸ Also see megaspore ▸ Words similar to megaspores ▸ Usage examples for megaspores ▸ Idioms related to megaspores ▸ Wikipedia articles (New!) ▸ Popular adjectives describing megaspores ▸ Words that often appear near megaspores ▸ Rhymes of megaspores ▸ Invented words related to megaspores