From Halopedia, the Halo wiki

Archmedicus was a high-ranking title given to senior Forerunner Lifeworkers. They typically specialised in disciplines such as tactical biocomplexes and medical strategy.[1] The Supernal Spiral-class keyship Anodyne Spirit carried a single archmedicus as part of its crew.[2]

Production notes[edit]

In the Halo Encyclopedia (2022 edition), the title of archmedicus is inadvertently listed under the typo "Rchmedicus".[1]