# Plücker matrix

> English word · Noun

## Definitions
1. A special skew-symmetric 4×4 matrix that characterizes a straight line in projective space, and is defined by six Plücker coordinates with four degrees of freedom.

## Etymology
Named after the German mathematician Julius Plücker.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/plucker-matrix