conventional haplography
Definition - The type of haplography where the omission of normally required letters and punctuation is deemed acceptable.

Example -
There are billions of numbers, such as 1, 2, 3, etc.
(Convention allows you to use just one period instead of two to terminate a sentence that ends with an abbreviation.)

Etymology -
The word was coined from the Greek haplos, simple or single + graphos, writing.

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