say it: IM-puhls
impulse is a noun meaning "an instinctive motive". It carries 6 recorded senses.
an instinctive motive
“profound religious impulses”
a sudden desire
“he bought it on an impulse”
the electrical discharge that travels along a nerve fiber
“they demonstrated the transmission of impulses from the cortex to the hypothalamus”
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 impulse 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.