Click any word in a definition or example to find the entry for that word
|I/you/we/they||turn in on|
|he/she/it||turns in on|
|present participle||turning in on|
|past tense||turned in on|
|past participle||turned in on|
This is the British English definition of turn in on. View American English definition of turn in on.
someone who studies the stars and planets using scientific equipment including telescopes