Longman Dictionary of Contemporary English homepage

Date: 1700-1800
Language: Medieval Latin
Origin: rotarius, from Latin rota; ROTATE

rotary

1 adjective
     
Related topics: Engineering
ro‧ta‧ry1 [only before noun]
1 turning in a circle around a fixed point, like a wheel:
the rotary movement of the helicopter blades
2TE having a main part that turns like a wheel:
a rotary engine

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary