ПЕРО noun
Перо 2 перо птиц
Synset
Interlingual Index
                                                                [Wordnet definition: the light horny waterproof structure forming the external covering of birds]
                                                            
                                                        hypernym
            [RuThes concept: роговое образование]
        
    domain
            [RuThes concept: биология]
        
    
            [RuThes concept: зоология]
        
    related
            [RuThes concept: оперение (процесс)]