蝋ろう膜まくMeanings1nouncereornithology›Ornithological term for the bare, often waxy skin at the base of a bird's upper beak. Used in scientific and bird-watching contexts.インコの蝋ろう膜まくの色いろで性せい別べつがわかることがある。The color of a parakeet's cere can sometimes indicate its sex.この鳥とりの蝋ろう膜まくは黄き色いろい。This bird's cere is yellow.