Definition of investigational in English:

investigational

Pronunciation /inˌvestəˈɡāSH(ə)n(ə)l/ /ɪnˌvɛstəˈɡeɪʃ(ə)n(ə)l/

adjective

  • 1Denoting or concerned with investigation; investigative.

    ‘students are encouraged to adopt an active, investigational approach to their learning’
    ‘public criticism grew as their investigational tactics grew more aggressive’
    1. 1.1Denoting or relating to a drug or medical procedure that is not approved for general use but is under investigation in clinical trials with respect to its safety and efficacy.
      ‘the focus of this research is an investigational vaccine’
      ‘an initiative designed to accelerate the evaluation of new investigational therapies for multiple myeloma’

Pronunciation

investigational

/inˌvestəˈɡāSH(ə)n(ə)l/ /ɪnˌvɛstəˈɡeɪʃ(ə)n(ə)l/