For women, the inability to become physically aroused during sexual activity often involves insufficient vaginal lubrication.

The thread failure was caused by excessive wear resulting from Alaska Airlines's insufficient lubrication of the jackscrew assembly.

This gives an impression that there is insufficient lubrication, but this is normal and the noise ceases after several seconds of operation.

Dyspareunia may be caused by insufficient lubrication (vaginal dryness) in women.

The gyroscope failure was attributed to insufficient lubrication.

But casement windows can become difficult to operate because of insufficient lubrication, paint- or grime-encrusted parts or a worn cranking mechanism.

The helicopter crashed near Fardipur because of a mechanical failure due to insufficient lubrication, with the loss of 20 passengers and all three crew.

But casement windows can become hard to close because of insufficient lubrication, dirt-clogged parts, or a worn crank.

Often the abscess will start as an internal wound caused by ulceration, hard stool or penetrative objects with insufficient lubrication.