Definition of Gastropoda in English:
 Gastropoda
plural nounˌɡastrəˈpəʊdəɡasˈtrɒpədəˌɡastrəˈpōdə
Zoology A large class of molluscs which includes snails, slugs, whelks, and all terrestrial kinds. They have a large muscular foot for movement and (in many kinds) a single asymmetrical spiral shell.
 Example sentencesExamples
-  The oval, flat foot is characteristic of the classes Monoplacophora, Polyplacophora and Gastropoda.
 -  In the traditional classification system, the class Gastropoda has been divided into three subclasses, Prosobranchia, Pulmonata, and Opisthobranchia.
 -  Slugs are soft-bodied animals belonging to a class called Gastropoda (not insects).
 -  Theoretical issues include which taxa even belong to the Gastropoda and macroevolutionary patterns such as the pervasiveness of trends and shifting rates of morphologic change and cladogenesis.
 -  Here we cover a few groups that seem to be very close to the crown group Gastropoda (slugs + limpets).
 
Origin
  
Modern Latin (plural), from Greek gastēr, gastr- 'stomach' + pous, pod- 'foot'.