Is -ea a parameter?

Hello,

    I tried to understand what -ea is ? For example, I have

Get-Process $proc -EA 0 

    I know that $proc is a variable and its value is being passed to the Get-process.

   I try to find what -EA is ? I thought it may be an alias but it is not there when I tried to look for alias named EA in Get-help alias. So I try to ask the forum if someone can help me to figure out -ea. 

Student at Georgia Tech