"Middle ages"

[Odessa Dawn]

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While I was listening to a British Independent Columnist on YOUTUBE, middle ages was pronounced as you see it in the bracket right here /mIl ei gIz/ dd being thoroughly dropped. Am I right that d sound can be omitted in casual speech?

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[5jj]

In very casual speech, /d/ may not be fully produced.

 

[Tdol]

It can become a glottal in casual speech, but completely dropped sounds a bit excessive to me.