IPA: /ˈoʊ.vɪˌdʌ.kəl/
KK: /ˈoʊvɪˌdʌkəl/
Relating to the oviducts, which are the tubes through which eggs pass from the ovaries to the uterus in female animals.
The study focused on the oviducal structure in various species of birds.
Oviducal is formed from "oviductus" (from Latin, meaning egg duct) and the suffix "-al" (meaning pertaining to). The term refers to something that pertains to the egg duct, typically in biological contexts.
Think of 'oviductus' which relates to an 'egg duct' — this helps you remember that 'oviducal' pertains to the egg duct.