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Adjacent Words

Pyrethrum camphor
Pyrethrum or Chrysanthemum Parthenium
pyretic
Pyretology
Pyrex
pyrexia
Pyrexiae
pyrexial
pyrexic
Pyrexical
Pyrgom
pyrheliometric
Pyridic
pyridine
Pyridium
pyridostigmine
pyridostigmine bromide
pyridoxal
pyridoxamine
pyridoxine
Pyridyl
pyrie
Pyriform
pyriform area

pyrheliometer definitions

Merriam Webster's

noun Etymology: International Scientific Vocabulary Date: 1863 an instrument for measuring the sun's radiant energy as received at the earth pyrheliometric adjective

Webster's 1913 Dictionary

Pyrheliometer Pyr*he`li*om"e*ter, n. [Gr. ? fire + ? sun + -meter.] (Physics) An instrument for measuring the direct heating effect of the sun's rays.



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