iho roto
1. (noun) inner core.
He totoka, he mārō te iho roto, he ranunga o te rino (Fe) me te konukōreko (Ni). Kei te takiwā o te 1,200km te mātotoru o te iho roto (RP 2009:316). / The inner core is solid and hard, a mixture of iron (Fe) and nickel (Ni). The inner core is in the vicinity of 1,200km thick.