spasm

From Wiktionary

Pronunciation[change]

Noun[change]

Singular
spasm

Plural
spasms

  1. A spasm is a sudden and jerky movement.
    People who are having seizures sometimes spasm.

Verb[change]

Plain form
spasm

Third-person singular
spasms

Past tense
spasmed

Past participle
spasmed

Present participle
spasming

  1. To spasm is to have body parts shake violently.