A.C. vs A/C

A.C.

adj

  • acromioclavicular 

  • axiocervical 

  • auriculocarotid 

  • atriocarotid 

adv

  • ante Christum, before Christ 

noun

  • anno Christi 

  • air conduction 

  • anodal closure 

  • army corps 

  • alternating current 

  • adrenal cortex 

  • appellate court 

  • athletic club 

A/C

How often have the words A.C. and A/C occurred in a corpus of books? (source: Google Ngram Viewer )