ovules Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. small structures in plants that develop into seeds. Example Sentence The plant's ovules will eventually develop into seeds. More Example Sentences Each ovule can become a seed. Synonyms seeds; egg cells; reproductive cells Antonyms petals; stems Hear It! Say It! Write It! ovules Switch to cursive Start Share with your friends: