IPA: /ˌtjuːməˈrɪdʒənɪk/
KK: /tjuːˌmɔːrɪˈdʒɛnɪk/
Able to cause the formation of tumors in the body.
Certain chemicals are known to be tumorigenic and can increase the risk of cancer.
Tumorigenic → It is formed from "tumor" (from Latin *tumor*, meaning swelling or mass) and "-genic" (from Greek *genes*, meaning born of or produced by). The word "tumorigenic" refers to something that produces or causes a tumor.
Think of a 'tumor' as a 'swelling' and '-genic' meaning 'produced by' — so tumorigenic means something that produces a swelling or tumor.