貝殻 (かいがら)seashell; shell

貝殻, its kanji, and other words that share them.Open this graph

Kanji in 貝殻

貝かいshellfish
巻き貝まきがいsnail; spiral shell
貝塚かいづかshell heap; shell mound
からす貝からすがいcockscomb pearl mussel (Cristaria plicata)
くも貝くもがいspider conch (Lambis lambis)
さくら貝さくらがいNitidotellina nitidula (species of tellin)
しゃこ貝しゃこがいgiant clam (any clam of subfamily Tridacnidae)
つぶ貝ツブがいwhelk (esp. Neptunea and Buccinum spp.)
殻からshell; husk
吸い殻すいがらcigarette end; cigarette butt
地殻変動ちかくへんどうdiastrophism; movement and deformation of the earth's crust
地殻ちかく(Earth's) crust
そば殻そばがらbuckwheat chaff
もぬけの殻もぬけのからcompletely empty (of a residence, etc.); vacant
もみ殻もみがらrice husks; chaff
イセリア介殻虫イセリアかいがらむしcottony cushion scale (species of scale insect, Icerya purchasi)

See how 貝殻 connects to the rest of Japanese.