say it: EM-boh-liz-uhm
embolism is a noun meaning "an insertion into a calendar". It carries 2 recorded senses.
an insertion into a calendar
occlusion of a blood vessel by an embolus (a loose clot or air bubble or other particle)
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 embolism 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.