pyrheliometer /pir-hē-li-omˈi-tər or pīr-hē-li-omˈi-tər/

An instrument for measuring the heating effect of the sun's rays

pyrheliometric /-ō-metˈrik/ adjective

• muddy
• muddy-headed
• muddying
• muddy-mettled
• muddy the waters
• mud engineer
• mud engineers
• mudfish
• mudfishes
• mudflap
• mudflaps
• mudflat
• mudflats
• mudflow
• mudflows
• mudge
• mudged
• mudger
• mudgers
• mudges
• mudging
• mudguard
• mudguards
• mud hen
• pye-dogs