To become thick and solid, usually from cooling or settling; to solidify or thicken gradually.
From Old French 'congeler,' from Latin 'congelāre' (con- 'together' + gelāre 'to freeze'). Originally meant to freeze, but expanded to mean any gradual thickening or solidification.
Congeal is the perfect word for blood or gravy cooling into gel—it describes that creepy-but-fascinating moment when a liquid loses its flow and becomes almost solid.
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