vel
vel — abbreviation
1. a written abbreviation for 'velocity', used in scientific and technical writing
a written abbreviation for 'velocity', used in scientific and technical writing to indicate how fast something is moving, often in a particular direction or measured at a specific moment.
The radar gun recorded a peak vel of 98 mph for the pitcher's fastball.
abbreviation used with 'peak' in sports context
In the lab report, the column labeled vel showed the toy car's speed at each timing gate.
abbreviation used in data table column headers
The seismograph recorded a maximum ground vel of 45 cm per second during the aftershock.
Ignacio calculated the average river vel by timing a floating object between two points.
The car's vel dropped sharply before the driver applied the brakes at the last corner.
- speed
A more common, everyday word. Unlike 'velocity', 'speed' does not imply a particular direction. Vel in scientific use nearly always refers to velocity with direction.
- velocity
The full word that 'vel' abbreviates. Use 'velocity' in formal prose and speech; reserve 'vel' for tables, labels, and informal technical notes.
- v
The standard mathematical symbol for velocity (e.g., v = d/t). Both 'vel' and 'v' appear in formulas, but 'vel' is more common in data tables and written reports.
用法筆記
Vel appears almost exclusively in written technical contexts — data tables, formulas, graphs, and lab reports. In spoken English, the full word 'velocity' is always used instead. Common in baseball analytics (pitch speed), physics education, automotive testing, and meteorology.