n. (Chem.) An unfermentable sugar, isomeric with glucose, found in the ripe berries of the rowan tree, or sorb, and extracted as a sweet white crystalline substance; -- called also mountain-ash sugar. [ 1913 Webster ]
[きょうみしんしん, kyoumishinshin] (adj-no, adj-t, adv-to) very interesting; of absorbing interest; having a keen interest (in); being immensely curious (about)