rayometer
/reɪˈɒmɪtə/rare. Now disused
noun
Any of several instruments used in the measurement of radiant energy or light.
Origin
Late 19th century. From ray + -ometer.
- payoff table
- payola
- pay one's compliments
- pay one's devoirs
- pay one's dues
- pay one's last respects
- pay one's (last) respects
- pay one's respects
- payor
- pay-or-play
- payout
- pay out of pocket
- pay packet
- pay party
- pay pause
- pay-per-click
- pay-per-view
- payphone
- pay raise
- pay restraint
- pay rise
- payroll
- payroller
- payroll giving
- payroll tax