Main Entry: di·a·ste·reo·mer

Pronunciation: \ˌdī-ə-ˈster-ē-ō-(ˌ)mər, -ˈstir-\

Variant(s): or di·a·ste·reo·iso·mer \-ˌster-ē-ō-ˈī-sə-mər, -ˌstir-\

Function: noun

: an isomer that is a stereoisomer of a compound having two or more chiral centers and that is not a mirror image of another stereoisomer of the same compound

—di·a·ste·reo·mer·ic \-ˌster-ē-ō-ˈmer-ik, -ˌstir-\ or di·a·ste·reo·iso·mer·ic \-ˌī-sə-ˈmer-ik\ adjective

—di·a·ste·reo·isom·er·ism \-ī-ˈsäm-ə-ˌriz-əm\ noun