This is the 11378th most frequent Catalan word.
tèrmica
"Relating to heat or thermal energy."
In this sentence, 'tèrmica' is used as an adjective describing a blanket that relates to heat retention.
La manta tèrmica manté la calor del cos.
The thermal blanket retains body heat.
Here, 'tèrmica' describes a power station that generates energy using heat.
Van instal·lar una central tèrmica prop del riu.
They installed a thermal power plant near the river.
In this use, 'tèrmica' modifies 'conductivity' to specify it pertains to heat transfer.