Thicken
Part of speech: verb
Definition: To make thicker (in the sense of wider). To make thicker (in the sense of more viscous) To become thicker (in the sense of wider). To become thicker (in the sense of more viscous).
Inspissate
Part of speech: verb
Definition: To thicken, especially by boiling, evaporation, or condensation; condense.To become viscous.