Source : Webster's Revised Unabridged Dictionary (1913)

Decigram \Dec"i*gram\, Decigramme \Dec"i*gramme\, n. [F.
   d['e]cigramme; pref. d['e]ci- tenth (fr. L. decimus) +
   gramme.]
   A weight in the metric system; one tenth of a gram, equal to
   1.5432 grains avoirdupois.