What does SD mean?

SD means Secure Digital (memory card type). This is the most common definition for SD on Snapchat, WhatsApp, Facebook, Instagram, TikTok, and Twitter.

What does SD mean after a name?

The word SD means “Signed” or “Undersigned”.

What does SD stand for in electricity?

SD mean that Sonic Density for Electrical.

What is SD in English grammar?

SD. written abbreviation for the US state of South Dakota: used in addresses.

What does R stand for in electricity?

Resistance REVIEW: Voltage measured in volts, symbolized by the letters E or V. Current measured in amps, symbolized by the letter I. Resistance measured in ohms, symbolized by the letter R.