Get Cortana to tell me definitions out loud?

[several potatos]

Can I get Cortana to give me a verbal definition on command? I can only seem to get her to Bing links to web dictionaries.

I'm doing some seriously detailed homework and my textbook has a lot of technical words with no definitions; I want to use Hey Cortana to quickly get definitions without looking away from my book.

And if it's been answered before, forgive me; I'm having trouble getting forum searches in the app to work.

I'll give you a big internet hug if you help me figure this out!

 

[Richard Servello]

Of you say define (word to define) she gives you a definition. Not sure if it's read aloud tho.

 

[several potatos]

Of you say define (word to define) she gives you a definition. Not sure if it's read aloud tho.

Thanks!
It kinda worked. Your suggestion apparently only works if it's in the OED; the technical terms that are in my book aren't read aloud because they're not in it. It does work for most words, however.