subconcussive en · ADJ
Etymology
From sub- + concussive.
Meanings
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(not-comparable) Below the threshold of concussion.
The pamphlet also makes no mention of the C.T.E. cases, whose increasing number is convincing many experts that subconcussive brain trauma can have cumulative effects.
2009 January 28, Alan Schwarz, “New Sign of Brain Damage in N.F.L.”, in New York Times: