Vocabulary consisting only from characters you are able to read
実験者
jikkensha
experimenter, researchermix
上手い
umai
(1)skillful, clever, expert, wise, successful, (2)delicious, appetizing, appetising, (3)fortunate, splendid, promising adj
方向性
houkousei
(1)trend, course of action, direction, (2)(comp) directionality, directivity, orientation, (adj-no) (3)(comp) directional, vectorial mix