A thermometer designed to measure extremely low temperatures, below the range of standard thermometers.
From Greek 'kryos' (cold) and 'metron' (measure). Combines the cold-related prefix with the '-meter' suffix for measuring instruments. Developed in the 19th century for scientific research requiring precise low-temperature readings.
Early cryometers couldn't measure below -40°C, but modern ones can read down to near absolute zero (-273°C)—scientists had to invent completely different technologies like resistance thermometers because liquid mercury freezes!
Complete word intelligence in one call. Free tier — 50 lookups/day.