organoleptic
Using the senses rather than instruments.
Organoleptic testing of the cosmetics revealed the presence of lumps in the hand cream.
Where it comes from
From French organoleptique, from organo- + Ancient Greek ληπτικός (lēptikós, “disposed to take”), from λαμβάνω (lambánō, “to take”).
Adapted from the Wiktionary entry organoleptic (CC BY-SA 4.0).