Definitions from Wiktionary (RHU)

▸ noun:  A village west of Helensburgh in Argyll and Bute council area, Scotland (OS grid ref NS2684).
▸ noun:  Initialism of Random House Dictionary of the English Language Unabridged.
▸ noun:  (space science, robotics) Initialism of radioisotope heater unit. (a device that generates heat from the natural decay of radioactive material)
▸ noun:  (Philippines, healthcare) Initialism of rural heath unit.



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