Freezing Rain vs. Freezing Drizzle: What’s the difference?

I scoffed at Environment Canada’s “freezing drizzle” advisory yesterday, thinking that it was simply freezing rain with another name. Turns out, I couldn’t be more wrong! Weatherlogics (what seems like a fascinating business) explains the difference. (Also, my face could detect the difference as I walked home yesterday—it definitely did not feel like rain.)