aminobenzoic acid
noun
ami·no·ben·zo·ic acid ə-ˌmē-nō-ben-ˈzō-ik- 
: any of three crystalline derivatives C7H7NO2 of benzoic acid
especially : para-aminobenzoic acid
Example Sentences
Recent Examples on the Web Two of the organic chemical compounds — aminobenzoic acid (PABA) and trolamine salicylate — are proposed as not safe and effective for sunscreen use. 
Washington Post, 28 Sep. 2021
Washington Post, 28 Sep. 2021 Word History
Etymology
International Scientific Vocabulary
First Known Use
1895, in the meaning defined above
Medical Definition
aminobenzoic acid
noun
ami·no·ben·zo·ic acid ə-ˌmē-nō-ben-ˌzō-ik-
: any of three crystalline derivatives C7H7NO2 of benzoic acid: as
a
: para-aminobenzoic acid
b
: anthranilic acid