兜

helmet (of a warrior)

Hercules beetle (Dynastes hercules)

inside of a helmet

frot (sex act)

Tusita heaven (one of the six heavens of the desire realm)

Kabutochō (neighbourhood of Nihonbashi, Tokyo, where the Tokyo Stock Exchange is located)

zunari helmet (made from 3-5 pieces of metal)

Tusita (heaven, pure land)

helmet-shaped hood

tokin

do not let your guard down after a victory

steel helmet

to accept one's inferiority

spiked helmet

aconite (esp. species Aconitum japonicum)

large-headed midnight fish (Poromitra crassiceps)

tadpole shrimp (Triopsidae spp.)

horseshoe crab