say it: SAHY-fuhn
siphon is a noun and verb meaning "a tube running from the liquid in a vessel to a lower level outside the vessel so that gravity forces the liquid through the tube". It carries 4 recorded senses.
convey, draw off, or empty by or as if by a siphon
move a liquid from one container into another by means of a siphon or a siphoning action
“siphon gas into the tank”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for siphon come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.