1. Cast iron to which nickel has been added to make it resist abrasion
   - Ni-hard

Type of: alloy cast iron, alloy iron

• noctambulism
• noctambulist
• noctiluca
• Noctiluca miliaris
• noctilucent
• Noctua
• noctuid
• noctuid moth
• Noctuidae
• noctule
• nocturia
• nocturn
• nocturnal
• nocturnal emission
• nocturnally
• nocturne
• nocuous
• nod
• nod off
• nodal
• nodal rhythm
• nodder
• nodding
• nodding donkey
• nodding groundsel