爪

thumb print

protective cover on a clog

ingrown toenail

nail (e.g. fingernail, toenail)

dewclaw

cutting one's nails at night (said to cause one to miss the deathbed of one's parents)

Anatomy

lunula; half-moon (of a fingernail)

African clawed frog (Xenopus laevis)

lunula (white crescent-shaped area at the base of a nail); nail moon

ratchet; toothed wheel

Medicine

onychomycosis; tinea unguium

silvertip shark (Carcharhinus albimarginatus)

nail removal; declawing

groove in a shamisen player's fingernail caused by the friction of the string of the instrument

claw hoe; coal-trimming rake

cockspur

kanji "claw" radical at top

kanji "claw" radical at left

cheyletid (any mite of the family Cheyletidae)

ingrown nail; ingrowing nail

hoatzin (Opisthocomus hoazin)

dirt that gathers under nails

declawing; onychectomy

Formal or literary term

fingernail mark; scratch