― Curiosity is one of those words which harbors a sense of mystery. In many instances it is because of curiosity that we continue to grow and progress in many areas of technology, intelligence, medicine, science and so forth. ∙ Curiosity: the desire to learn or know about anything; inquisitiveness. ∙ Curiosity: a strange, curious, or interesting quality. ∙ Curiosity: The Curiosity rover is a nuclear-powered Mars rover that is part of NASA's Mars Science Laboratory (MSL) [...].