knapskull, knapscull or knapscal /napˈskəl/ (obs Scot)

A kind of helmet

• sphacelate
• sphacelated
• sphacelates
• sphacelating
• sphacelation
• sphacelations
• sphacelus
• sphaceluses
• sphaer
• sphaere
• sphaeridia
• sphaeridium
• sphaerite
• sphaerites
• sphaerocobaltite
• sphaerocrystal
• sphaerocrystals
• sphaerosiderite
• sphagnicolous
• sphagnologies
• sphagnologist
• sphagnologists
• sphagnology
• sphagnous
• sphagnum