pygidium

noun

py·​gid·​i·​um pī-ˈji-dē-əm 

plural pygidia pī-ˈji-dē-ə 

: a caudal structure or the terminal body region of various invertebrates

pygidial

pī-ˈji-dē-əl 

adjective

Word History

Etymology

New Latin, from Greek pygidion, diminutive of pygē rump

First Known Use

1848, in the meaning defined above

Rhymes for pygidium

• clostridium
• cranidium
• cymbidium
• iridium
• peridium
• presidium
• rubidium
• cryptosporidium
• idiom