Wordo investigadorMeaningthe researcherPart of speechnounPronunciationCoursePortuguese (Portugal)LessonEmphasizing who and where (foi quem, é onde)Usages of o investigadorFoi o investigador quem escreveu a equação.It was the researcher who wrote the equation.O investigador estuda o átomo e a molécula.The researcher studies the atom and the molecule.Foi o investigador quem descobriu a penicilina.It was the researcher who discovered penicillin.