upho - vert
- uphole
- uphole detector
- uphole geophone
- uphole seismograph
- uphole seismometer
- uphole shooting operation
- uphole simulator
- uphole survey
- uphole time
- uphole time measurement
- uphole travel(-time) graph
- uphole(-shooting) time
- uphole(-time) information
- uphole-time data
- uplift
- upper half-space
- upper layer
- upper limit
- upper mantle
- upper medium
- upper-yield point
- uppermost layer
- upraise drift
- upset end joint
- upsetting device
- upstream pressure controller
- upsweep(ing)
- upthrow fault
- upward hole
- upward movement
- upward radiation
- upward traveling wave
- upward velocity
- upward-continuation integral
- upward-continued field
- upward-traveling wavefront
- upwind fallout
- uranium fission
- uric acid
- usable length of record
