Feel Out the Definition of Palpable

The word palpable has been used in English since the 14th century. It derives from the Latin word palpare, meaning "to stroke" or "to caress"—the same root that gives us the word palpitation. The Latin verb is also a linguistic ancestor of the verb feel. Palpable can be used to describe things that can be felt through the skin, such as a person's pulse, but even more frequently it is used in reference to things that cannot be touched but are still so easy to perceive that it is as though they could be touched—such as "a palpable tension in the air."