Tangible.
ETYM French palpable, Latin palpabilis, from palpare to feel, stroke; cf. palpus the soft palm of the hand.
1. Capable of being perceived by the senses or the mind; especially capable of being handled or touched or felt; SYN. tangible.
2. (Medicine) Can be felt by palpation.
3. Tangible; provable; obvious.