second impact syndrome

noun

A rapid and severe brain swelling caused by a second concussion before the first one has sufficiently healed, resulting in possible death or permanent disability.

Similar
SIS
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Meanings

nounsecond impact syndrome (usually uncountable, plural second impact syndromes)

plural second impact syndromes · alternative second-impact syndrome

  1. uncountableusuallyA rapid and severe brain swelling caused by a second concussion before the first one has sufficiently healed, resulting in possible death or permanent disability.

    Synonyms: SIS

Synonyms & antonyms

nounA rapid and severe brain swelling caused by a second concussion before the first one has sufficiently healed, resulting in possible death or permanent disability.

Similar
SIS
Cite this entry
APA

second impact syndrome. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/second%20impact%20syndrome

MLA

“second impact syndrome.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/second%20impact%20syndrome. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “second impact syndrome,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/second%20impact%20syndrome.

Source: second impact syndrome on Wiktionary, CC BY-SA 4.0.