Learn how to say Realia correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word realia:
objects and material from everyday life used as teaching aids:
the industrial English language course makes extensive and varied use of realia, such as specifications, extracts from company brochures, manuals, diagrams, etc.
1950s: from late Latin, neuter plural (used as a noun) of realis ‘relating to things’ (see real1)