The laboratory water-bath, known eponymously (especially in France) as the bain-marie, is said to have been invented or at least improved by her.
ðə lˈæbɹətˌɔːɹi wˈɔːɾɚbˈæθ, nˈoʊn ɛpˈɑːnɪməsli ɪspˈɛʃəli ɪn fɹˈæns æz ðə bˈeɪnmɚɹˈiː, ɪz sˈɛd tə hɐvbɪn ɪnvˈɛntᵻd ɔːɹ æt lˈiːst ɪmpɹˈuːvd baɪ hɜː.