pinion

Definition

A small cogwheel that engages with a larger gear to transmit motion and force; alternatively, the outer segment of a bird's wing, or to restrain someone by binding or holding their arms. In aviation, pinions are critical components of gear systems.

Example Usage

The mechanic replaced the worn pinion gear to restore smooth transmission in the car's differential.

Origin

From French 'pignon,' derived from Old French 'peigne' (comb or cog), ultimately from Latin 'pecten.'

Fun Fact

A pinion and ring gear combination is fundamental to vehicle differentials, allowing wheels to rotate at different speeds.

Source: Definition backfill (hailey)

Related Terms

Beginner

source code

The actual human-readable instructions that programmers write before computers turn it into incomprehensible machine language. It's the recipe behind the dish, the blueprint behind the building, and the sacred text that developers guard more jealously than their Netflix passwords. Lose this, and you're basically trying to reverse-engineer your own creation.

💻 Tech / IT

Advanced

derate

To officially lower a piece of equipment's performance rating because it can't handle what you promised it could—basically admitting you oversold the specs. It's what engineers do when reality crashes the party and safety margins get real.

💻 Tech / IT

Intermediate

routing

The digital traffic cop that decides which path your data packets should take through the internet's maze of networks. In tech, it's how routers connect LANs into a functional internet; in business, it's directing documents to the right person so they can ignore them appropriately. Either way, it's all about getting things from Point A to Point B without getting lost in the void.

💻 Tech / IT

Advanced

guestified

What happens when your IRC nickname account gets demoted to guest status because you couldn't verify your identity in time—basically the internet equivalent of being put in timeout for forgetting your password.

💻 Tech / IT

Advanced

methyl

A chemical radical (CH3-) derived from methane that swaggers through organic compounds like it owns the place—the building block of countless molecules that make modern chemistry possible. Scientists basically stole this from nature and turned it into a universal modifier.

💻 Tech / IT

Intermediate

Laserdisc

A large optical disc format (12 inches in diameter) that emerged in the late 1970s as a high-quality alternative to VHS, offering superior picture and sound but requiring expensive players and limited content availability. Laserdiscs never achieved mainstream adoption despite their technical superiority.

💻 Tech / IT

Translate This Term

See “pinion” in Corporate Speak, Gen-Z Slang, Pirate Speak, and more.

Try the Translator

Share This Term

Post on X Share on Facebook Share on LinkedIn

Discover a Term

Intermediate

real life syndrome

The tragic affliction that strikes gamers when adult responsibilities like jobs, school, or relationships interfere with...