caput mortuum

noun
caput mor·​tu·​um | \-ˈmȯrchəwəm\
plural capita mortua\ -​wə \

Definition of caput mortuum 

1 alchemy : the residuum after distillation or sublimation

2 : dross : worthless residue

3 or caput mortuum vitrioli \ -​ˌvi‧trēˈōˌlē, -​ī \ : a red iron-oxide pigment made by calcining iron sulfate

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History and Etymology for caput mortuum

New Latin, literally, dead head

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Dictionary Entries near caput mortuum

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