say it: THRAH-bing
throbbing is a noun and adjective meaning "an instance of rapid strong pulsation (of the heart)". It carries 3 recorded senses.
pounding or beating strongly or violently
“a throbbing pain”
“the throbbing engine of the boat”
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 throbbing 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.