obscure rays
noun
Dark or invisible rays; specifically heat-rays of the solar spectrum. Now rare.
Origin
Mid 19th century; earliest use found in Mary Somerville (1780–1872), science writer and mathematics expositor.
- waist-high
- waistless
- waistline
- wait
- wait-a-bit
- wait-a-bit thorn
- wait and see
- Waitangi Day
- Waitangi, Treaty of
- Waite, Morrison Remick
- waiter
- wait for it
- wait for the other shoe to drop
- waiting
- waiting game
- waiting list
- waiting room
- wait list
- wait on (or upon)
- wait on someone hand and foot
- waitperson
- waitress
- waitressing
- waitron
- waitstaff