periostracum /per-i-osˈtrə-kəm/

The horny outer layer of a mollusc's shell

• Hansen's disease
• hansom
• hansom-cab
• hansoms
• ha'n't
• hantavirus
• hantaviruses
• hantle
• hantles
• Hants.
• Hanukkah
• hanuman
• hanumans
• haoma
• haomas
• haoma vine
• hap
• hapax legomenon
• ha'pence
• ha'penny
• haphazard
• haphazardly
• haphazardness
• haphazardnesses
• haphazards