no
root has many synonyms such as bulb, rootstock, spur & tuber
stern
Reverse gear is spur because it has to slide, sliding mesh gearbox uses spur gears. Because if it was constant mesh gear (helical) it could not slide in and out, therefore it could not go in the opposite direction of rotation.
The wheels of a vehicle may rotate in different directions if they have a system that is called "spur-gear differential." Pinion pairs are displaced axially, and mesh part of the length between two spur gears, results in rotation in opposite directions.
Spur
What is spur formation?
The echidna has a spur on its hind legs but, unlike the platypus, the spur is not attached to a functional venom gland. The spur is also blunt.
The address of the Spur-Dickens County Museum is: Po Box 303, Spur, TX 79370
The wheel on a spur is a "rowel".
Let me spur your progress.
The address of the Dickens County Spur Public Library is: 415 E Hill St, Spur, 79370 2511
where is the word spur in the bible