What does synchronizer mean?
A synchronizer is a device or mechanism that brings two or more components into agreement with one another. It may coordinate signals, timing, motion, or another recurring process so that the parts operate consistently together. The word is especially common in discussions of manual vehicle transmissions, where a gear synchronizer matches the rotational speeds of adjacent shafts before a gear is engaged. This prevents harsh impacts, unwanted noise, and excessive wear during a gear change. Synchronizers also appear in electronics, computing, audio equipment, and industrial machinery, where they coordinate signals or synchronize separate operations. Although the general idea is simple, the term implies an active mechanism rather than merely a shared schedule or agreement. In technical use, a synchronizer is therefore the component responsible for detecting or overcoming differences and maintaining a coordinated relationship between otherwise separate parts.
nounA device or mechanism that synchronizes two or more components by coordinating their timing, motion, or operation. In a manual transmission, the term often refers to the mechanism that matches the speeds of adjoining shafts so that a gear can engage smoothly.
- A device or mechanism that coordinates the timing, motion, or operation of two or more components.
"The synchronizer prevents the transmission from clattering as the driver changes gear."
"The clock's internal synchronizer keeps the display and the alarm in step."
"A worn synchronizer can make it difficult to select a higher gear."
The regular plural is synchronizers.
"Both synchronizers were replaced after the gearbox began rattling."
In a manual transmission, a synchronizer makes changing gears smoother by waiting for two rotating shafts to reach matching speeds.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does synchronizer come from?
The word comes from synchronize, which combines the Greek prefix synchronos, meaning “together” or “at the same time,” with the English verb synchronize. The suffix -er was added to form a noun naming an instrument, mechanism, or person that performs the act of synchronizing.
How synchronizer is actually used
This is chiefly a technical term. In automotive contexts it usually denotes a component that enables smooth engagement between transmission gears; elsewhere it may refer to an electronic device that coordinates signals or events.
Easily confused with synchronizer
A synchronizer is a device that coordinates components, whereas synchronous is an adjective describing events or operations that occur together.