1. n. [Geophysics]

A graph or curve that displays time versus distance of motion.

2. n. [Geophysics]

A crossplot of two components of particle motion over a time window. Hodograms are used in borehole seismology to determine arrival directions of waves and to detect shear-wave splitting. Data recorded along two geophone axes are displayed as a function of time.

See related terms: borehole seismic data,  S-wave,  shear wave