noun py·gid·i·um \pī-ˈji-dē-əm\
plural -gid·ia \-ˈji-dē-ə\

Definition of PYGIDIUM

:  a caudal structure or the terminal body region of various invertebrates
py·gid·i·al \-dē-əl\ adjective

Origin of PYGIDIUM

New Latin, from Greek pygidion, diminutive of pygē rump
First Known Use: 1848


Next Word in the Dictionary: pygmaeanPrevious Word in the Dictionary: PygidiidaeAll Words Near: pygidium
May 24, 2015
erudite Hear it
learned or pedantic
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears