IPA: /prɪˈlɛkʃən/
KK: /prɪˈlɛkʃən/
A public lecture or reading, often given at a college or university.
The professor's prelection on modern philosophy attracted many students.
Prelection is formed from "pre-" (meaning before) and "lectio" (from Latin, meaning reading or selection). The word refers to a reading or lecture that is given beforehand, often in preparation for a more detailed study or discussion.
Think of 'pre-' meaning before and 'lectio' meaning reading — this helps you remember that prelection is a reading or lecture that happens before something else.