Abbreviated imp. & p. p. : of Abbreviate

Abbreviated a. : Shortened; relatively short; abbreviate.

Example:
How do you find the Abbreviated electron configuration of an element?

Taxonomy
abbreviation, periods, acronyms, syllabic abbreviation, full stops, Syllabic abbreviations, word abbreviation, lower case, initialisms, rule, Contraction, British publications, United States, style guides, List of acronyms and initialisms, capital letter, exceptions, full point.

Defination from the web:
abbreviated as "Nato" or "NATO", and Severe Acute Respiratory Syndrome as "Sars" or " ... Initialisms are always written in capitals; for example the "British Broadcasting Corporation" is abbreviated to "BBC", never "Bbc" ...