operculum 

  1. 名詞
(魚的)鰓蓋
(昆蟲的)蓋
植物: 果蓋, 蘚蓋
螺的厴
/此名詞複數可為"operculums"或"opercula"/

    
                        
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例句

                

                    
    
                                                    
  1. 
                                A gold spot tops the operculum .                            
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  2. 
                                The horny operculum is very small.                            
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  3. 
                                There is no black spot on the operculum .                            
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  4. 
                                The lid or operculum is and lacks appendages.                            
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  5. 
                                Left: Left and right sides showing operculum .                            
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