…(of a quality or state) existing but not yet developed or manifest; hidden or concealed…
…the heat required to convert a solid into a liquid or vapour, or a liquid into a vapour, without change of temperature…
…an image on an exposed film or print that has not yet been made visible by developing…
…the period between infection with a virus or other microorganism and the onset of symptoms, or between exposure to radiation and the appearance of a cancer…
