inspissate

verb

Etymology: Formed from Late Latin inspissātus (“thickened, having been made thick or thicker”), the perfect passive participle of inspissāre (“to thicken”).

1. To thicken a fluid, in the sense of making it more viscous, especially by boiling, evaporation, or condensation; to condense.

   “Inspissate at 85°C (moist heat) for 45 min.”

2. Of a fluid: to become more viscous.

   “Instead of allowing the juice after the incision to inspissate on the capsule, he collected it immediately, and dried it by artificial heat.”