01 a. Black, like ink; inky; atramental.
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1.
Black, like ink; inky; atramental.[Obs.]
Entry
1 sense
Webster, 1913
Atramentaceous
· At·ra·men·ta·ceous
· IPA /ˌæ.tɹə.mɛnˈteɪ.ʃəs/