Gumu群(姓,日本)gumn.牙床；树胶；齿龈；粘性物质v.搞砸；用牙床嚼；以树胶粘合gum inhibitor阻胶剂,胶质抑制剂gumming paper涂胶纸gum retractor牙龈牵开器gummy residue胶质残余gum accroides禾木树脂gumma of lung肺梅毒树胶样肿gum-elasticn.弹性胶；橡胶gum-treatedn.胶质处理gum dispenser胶姆糖,自动售货机gum recession[医] 龈退缩