English-Thai Dictionary
radiometer
N เครื่องวัด พลังงาน รังสี krueng-wad-pa-lang-nang-rang-se
Webster's 1828 Dictionary
RADIOMETER
n.[L. radius, rod, and Gr. measure. ] The forestaff, an instrument for taking the altitudes of celestial bodies.
Webster's 1913 Dictionary
RADIOMETER
Ra `di *om "e *ter, n. Etym: [L. radius radius + -meter: cf. F.radiomètre.]
1. (Naut. )
Defn: A forestaff.
2. (Physics )
Defn: An instrument designed for measuring the mechanical effect of radiant energy.
Note: It consists of a number of light discs, blackened on one side, placed at the ends of extended arms, supported on an a pivot in an exhausted glass vessel. When exposed to rays of light or heat, the arms rotate.
New American Oxford Dictionary
radiometer
ra di om e ter |ˌrādēˈämitər ˌreɪdiˈɑmədər | ▶noun an instrument for detecting or measuring the intensity or force of radiation. DERIVATIVES ra di o met ric |-dēəˈmetrik |adjective, ra di o met ri cal ly |-dēəˈmetrik (ə )lē |adverb, ra di om e try |-trē |noun
Oxford Dictionary
radiometer
radiometer |ˌreɪdɪˈɒmɪtə | ▶noun an instrument for detecting or measuring the intensity or force of radiation. DERIVATIVES radiometry noun
Duden Dictionary
Radiometer
Ra dio me ter Substantiv, Neutrum Physik , das |Radiom e ter | -meter 1 Gerät zur Messung von [Wärme ]strahlung mit einem leicht drehbar in einem evakuierten Glaskolben aufgehängten Plättchen aus Glimmer oder Metall
The Wordsmith Dictionary