For the similarly vague vessel designation, please see Tholian ship.

A Tholian vessel was a type of starship employed by the Tholians during the mid-24th century.

When William T. Riker participated in a battle simulation at Starfleet Academy, he calculated a sensory blind spot on a Tholian vessel and hid within it.

Many years later, in 2365, Lieutenant Commander Data noted this as one of Riker's various battle techniques while preparing for Operation Lovely Angel. (TNG: "Peak Performance")

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