thermal vs woolly

thermal

noun
  • A column of rising air in the lower atmosphere created by uneven heating of Earth's surface. 

adj
  • Pertaining to heat or temperature. 

  • Caused or brought about by heat. 

  • Having a rough finish by treatment with a blow-torch. 

  • Providing efficient insulation so as to keep the body warm. 

verb
  • To create a rough finish on stone by treating it with a high-temperature blow-torch. 

  • To fly an unpowered aircraft in a (thermal) column of rising air. 

woolly

adj
  • Unclear, fuzzy, hazy, cloudy. 

  • Made of wool. 

  • Having a thick, soft texture, as if made of wool. 

  • Based on emotions rather than logic. 

noun
  • A sheep not yet shorn. 

  • A sweater or similar garment made of wool. 

  • A woolly back; someone from the area around Liverpool, not from Liverpool itself. 

  • A piece of woolwork. 

How often have the words thermal and woolly occurred in a corpus of books? (source: Google Ngram Viewer )