noun🔗ShareAnimal rexAn animal which has a genetic recessive variation that causes the guard hairs to be very short or fully lacking."My sister's pet rabbit is a rex; its fur is incredibly soft because it lacks the usual coarse outer hairs. "Le lapin de ma sœur est un animal rex ; sa fourrure est incroyablement douce car elle est dépourvue des poils de garde habituels.animalbiologyorganismChat with AIVocabulary GamePractice Reading