barkstone
noun
bark·stone
: castor entry 1 sense 2
Word History
Etymology
bark entry 3 + stone
- protostars
- Protostega
- protostele
- protosteles
- protostelic
- protostome
- protostomes
- Protostomia
- protostrongylin
- protosun
- protosyllabic
- Protosymphyla
- prototaxites
- protothere
- Prototheria
- prototheriae
- prototherians
- prototherias
- prototonic
- Prototracheata
- prototroch
- prototrochal
- prototroph
- prototrophic
- prototrophies