pyr·he·li·om·e·ter 
(pīr′hē-lē-ŏmĭ-tər, pĭr′-)
(pīr′hē-lē-ŏmĭ-tər, pĭr′-)n.
Any of various devices that measure the intensity of solar radiation received at the earth.
- particle
- particle accelerator
- particle beam
- particleboard
- particle board
- particle decay
- particle physics
- parti-colored
- particular
- particularism
- particularist
- particularistic
- particularity
- particularization
- particularize
- particularizer
- particularly
- particulate
- particulate matter
- partier
- parting
- parting of the ways
- parting shot
- parti pris
- partisan