Sy·pha·cia noun \sī-ˈfā-shē-ə\
: a genus of nematode worms of the family Oxyuridae that includes one (S. obvelata) normally parasitic in the cecum and colon of rodents and rarely in humans
Seen & Heard
What made you want to look up Syphacia? Please tell us where you read or heard it (including the quote, if possible).