noun
Refers to very high temperatures, often in weather, cooking, or industrial contexts. The reading ごくねち is obsolete.
この夏の極熱には本当に参った。
I really suffered from the extreme heat this summer.
極熱の砂漠を探検する。
Explore the desert of extreme heat.
Compound of 極 (extreme) and 熱 (heat). The reading ごくねち is an older, now obsolete form.