say it: ruh-SEP-tuh-kuhl
receptacle is a noun meaning "a container that is used to put or keep things in". It carries 3 recorded senses.
enlarged tip of a stem that bears the floral parts
an electrical (or electronic) fitting that is connected to a source of power and equipped to receive an insert
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 receptacle 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.