BCD in scuba diving is: B For Buoyancy; C for Control; and D for Device

What does BCD stand for in diving

What does BCD stand for in scuba diving?

A buoyancy control device is also known as a BCD, which stands for:

  • B is for Buoyancy.
  • C is for Control.
  • D is for Device.

A scuba divers’ buoyancy compensator, which is also called a buoyancy control device, is to help them maintain neutrally buoyancy through the dive.

More Reading: How To Achieve Neutral Buoyancy Scuba Diving (Made Easy)

Other names fora BCD or Buoyancy Control Device include BC, stab jacket, buoyancy wing or ABLJ. Although I don’t think you can get an ABLJ any more as this is an old style buoyancy device.

The reason for needing a BCD is because of the density of water, which gets greater the deeper you dive.

More Reading: How Does A Buoyancy Control Device Work? (Don’t Dive Without Knowing)

A buoyancy Control Device has an inflatable bladder inside that is filled with air. As you descend on a dive you add more air to this air-bladder. This extra air compensates for the fact that you become less buoyancy the deeper you go. The reduced buoyancy in due to the water pressure around you.

I hope you enjoyed this article about what does BCD stand for in diving

I’d love to hear from you. Tell us about your adventures of diving and snorkeling, in the comments below. Please also share your photos. Either from your underwater cameras or videos from your waterproof go-pro’s!

If this article hasn’t answered all of your questions. If you have more questions either about snorkeling or scuba diving (or specifically on what does BCD stand for in diving), please comment below with your questions.

There will also be many more articles about scuba and scuba diving safety tips (and on snorkeling too) for you to read and learn about this fabulous sport.

Have fun and be safe!


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