1. [ verb ] criticize severely
Synonyms: rail

"He fulminated against the Republicans' plan to cut Medicare" "She railed against the bad social policies"

Related terms: denounce fulmination
2. [ verb ] come on suddenly and intensely

"the disease fulminated"

Related terms: appear
3. [ verb ] cause to explode violently and with loud noise
Related terms: explode fulmination
4. [ noun ] (chemistry) a salt or ester of fulminic acid
Related terms: salt mercury_fulminate
Similar spelling:   fulminant