
pygidium 



pygidium noun. [pʌɪ'dʒɪdɪǝm, -g-] Pl. -ia [-ɪǝ]. 
Irregular Forms: (pl) pygidia 
(جانور شناسی). دم(dom)، ساختمان دم و کفل
pygidium noun. 
[pʌɪ'dʒɪdɪǝm, -g-] Pl. -ia 
[-ɪǝ]. 
M19.[mod. Latin, formed as PYGAL: see -IDIUM.]Zoology. The caudal part of the body posterior to the last segment in certain invertebrates, esp. insects, crustaceans, and worms.
 ■   pygidial adjective L19.  [TahlilGaran] English Dictionary ▲