Any process that stops, prevents or reduces the frequency, rate or extent of filamentous growth of a population of unicellular organisms in response to heat.
synonyms:
downregulation of filamentous growth of a population of unicellular organisms in response to heat,
down-regulation of filamentous growth of a population of unicellular organisms in response to heat,
down regulation of filamentous growth of a population of unicellular organisms in response to heat,
inhibition of filamentous growth of a population of unicellular organisms in response to heat