umuruka (imi-  2  class 2
singular: umu-
plural: imi-
  
carapace, shell
 umuruka : Prefixless Present 2. pers. sing. with 1.class 3.pers. sg. object of:
kuruka (-rutse)     v    1. to vomit, 2. spit up phlegm
carapace    ikigaragamba, umuruka
En-En dictionary 
shell    (of gun) urusoro
(peanuts, etc.) ibishishwa
(egg) ikibarara
(carapace) ikigaragamba, umuruka
En-En dictionary