collimator
UK[ˈkɒlɪmeɪtə]US[ˈkɑːləmeɪtər]
n
A device for producing a parallel beam of radiation or particles.
n
The part of an optical instrument used to align its components or to focus light.
Morpheme Breakdown
collimate
or
collimate
or
Etymology
The word 'collimator' has a fascinating origin rooted in a scribal error. It derives from the verb 'collimate', which is a corruption of the Latin collineare, meaning 'to align or aim straight'. This verb itself combines com- ('together') and linea ('line'), conveying the literal idea of bringing things into a single line. The suffix -or is a standard Latin agent suffix, turning the action into the name of the instrument that performs it. Thus, a collimator is literally "an instrument that aligns things into a line," which perfectly describes its modern function in optics and physics of producing a parallel, non-diverging beam.
Analysis
Structure: collimate + or
- collimate: A verb from Latin collimare, a misreading of collineare ('to align, to aim'), from com- ('together') + linea ('line').
- or: A noun-forming suffix of Latin origin, indicating an agent or instrument that performs the action of the verb.
Examples
The scientist adjusted the collimator to ensure the laser beam was perfectly straight.
In the X-ray machine, a collimator is used to limit and shape the radiation field.
The telescope's collimator was essential for aligning the lenses before observation.