Medical Dictionary
sphagnum
noun sphag·num \ˈsfag-nəm\
Medical Definition of SPHAGNUM
1
: any of an order (Sphagnales, containing a single genus Sphagnum) of atypical mosses that grow only in wet acid areas where their remains become compacted with other plant debris to form peat
2
: a mass of dehydrated sphagnum plants used as a surgical dressing especially during World War I
Seen & Heard
What made you want to look up sphagnum? Please tell us where you read or heard it (including the quote, if possible).