Never tested separately
Clairsentience
Clairsentience is the claimed ability of receiving information as a physical sensation rather than an image. It has never been tested as a distinct ability: Untested as a distinct ability. Every claimed demonstration is a clairvoyance trial with a different description of the experience.
The experiment
None isolating it
The "clair" terms multiply by sensory channel — sight, hearing, feeling, knowing — but the experiments only ever measure the answer. The distinction lives entirely in the report, not in the result.
Where the word comes from
A twentieth-century addition to the "clair" family, built by analogy with clairvoyance rather than from any separate tradition.
Terms in this field are younger than they sound. Most were coined between 1840 and 1930, in the Spiritualist and Theosophical revivals, and then presented as ancient. Dating them is the cheapest reality check available.