siphons Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. tubes used to move liquids from one place to another using gravity. Example Sentence He siphons half the water out of the fish tank to clean it. More Example Sentences He used siphons to drain the pond. Synonyms tubes; pipes; funnels Antonyms fill up Hear It! Say It! Write It! siphons Switch to cursive Start Share with your friends: