otheoscope
/ˈəʊθɪəskəʊp/Now historical and rare
noun
A modification of Crookes's radiometer in which the black or driving surface is stationary, whilst the cooling surface is movable.
Origin
Late 19th century; earliest use found in William Crookes (1832–1919), chemist and science journalist. From ancient Greek ὠθεῖν to push + -o- + -scope; compare quot. 1877.
- play lunch
- playmake
- playmaker
- playmaking
- playmate
- play material
- playmating
- play merry hell with
- play method
- playmobile
- play money
- play night
- playock
- play off
- play of words
- play on
- play one's ace
- play one's cards close to one's chest
- play one's cards right
- play one's cards right (or well)
- play oneself in
- play (or act) the fool
- play (or keep) one's cards close to one's chest (or vest)
- play (or play it) safe (or for safety)
- play (or raise) hob