semasiology
noun
se·ma·si·ol·o·gy si-ˌmā-sē-ˈä-lə-jē 
-ˌmā-zē-
: semantics sense 1
semasiological
si-ˌmā-sē-ə-ˈlä-ji-kəl
adjective -zē-
Word History
Etymology
International Scientific Vocabulary, from Greek sēmasia meaning, from sēmainein to mean
First Known Use
1847, in the meaning defined above