Perl
biographical name
ˈpərl 
Martin (Lewis) 1927–2014 American physicist
- crocodile bird
- crocodile clip
- crocodile shears
- crocodile squeezer
- crocodile tears
- crocodiles
- crocodili
- Crocodilia
- crocodiliae
- crocodilian
- crocodilians
- crocodilias
- Crocodilidae
- crocodiloid
- Crocodilus
- crocodiluses
- crocodilusses
- crocodyli
- crocodyliae
- crocodylias
- Crocodylidae
- crocodylidaes
- Crocodyloidea
- Crocodylus
- crocodyluses