da alama ba a sami shigarwar ƙamus na kalmar "allantoic". Zai yiwu kalmar da kake nema ita ce "allantois", wanda shine sunan da ke nufin wani ƙwayar tayi wanda ya zama jakar ajiyar kaya a cikin tsuntsaye, dabbobi masu rarrafe, da dabbobi masu shayarwa. Allantois wani muhimmin tsari ne a cikin ci gaban amfrayo, saboda yana taimakawa tare da musayar gas da kawar da sharar gida a cikin tayin mai tasowa.