Definition of tribasic in US English:

tribasic

adjective

Chemistry
  • (of an acid) having three replaceable hydrogen atoms.

    • ‘The invention relates to a method of and an apparatus for producing tribasic propellant charge powders.’
    • ‘It has three acidic protons (attached to oxygen) and is therefore tribasic.’
    • ‘For more information about our extensive line of tribasic esters, we encourage confidential consultation with our technically trained Business Managers who can guide you to the best products or development programs.’
    • ‘Other alkalis, such as ammonium carbonate, sodium tribasic phosphate, acetone, and various glycols (such as triethanolamine, pH 8 at 1% dilution), are sometimes used.’

Pronunciation

tribasic

/traɪˈbeɪsɪk//trīˈbāsik/