Ûi-thoân-thé-ha̍k (Eng-gí: genomics) sī chi̍t khoán kho-ha̍k hun-iá, choan-bûn tī ûi-thoân-thé ê kò͘-chō, chok-iōng, chìn-hòa, chè-tô͘ (mapping, tùi ûi-thoân-chú chē-chí ê gián-kiù), kap pian-chi̍p. Ûi-thoân-thé sī bó͘ chi̍t-ê seng-bu̍t-thé só͘-ū ê DNA, tang-tiong koh hâm só͘-ū ê ûi-thoân-chú. Siong-tùi khah chim-chiok tī kò-pia̍t ûi-thoân-chú sèng-chit ê ûi-thoân-ha̍k, ûi-thoân-thé-ha̍k sī khah tiōng kui cho͘ ê sèng-chit kap ûi-thoán-chú ê sò͘-liōng-sèng gián-kiù.