Dictionary.com
Thesaurus.com

TBI

American  
[tee-bee-ahy] / ˈtiˈbiˈaɪ /

abbreviation

plural

TBIs
  1. Medicine/Medical. traumatic brain injury: damage to the brain from a source outside the body, such as an object that strikes the head violently or penetrates the skull, which causes symptoms ranging from headache and dizziness to permanent physical or mental disability.

  2. Automotive. throttle-body injection: a fuel-injection system in which an injector delivers fuel to a central location within the intake manifold of the engine.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It was initially a counterpoint to the Pusser museum’s biannual official bus tour, though this year’s was postponed amid the fallout from the TBI investigation.

From Slate • Nov. 6, 2025

Sorting through the 1,000-page TBI file and associated audio and video requires, as Connie Elam, Mike’s wife, told me, a “police officer’s eye for details.”

From Slate • Nov. 6, 2025

Dr. Ramon Diaz-Arrastia, director of Penn Medicine’s TBI research center, said that ibogaine is “one of the more promising compounds” for treatment of TBI.

From Los Angeles Times • Sep. 12, 2025

Earlier this month, Stanford University published a study in Nature Medicine of 30 veterans with TBI in which Sean participated.

From Salon • Feb. 8, 2025

The study involved 32 individuals with TBI, randomly assigned to either a sleep or wake group following training on a motor task.

From Science Daily • Nov. 18, 2024