PFD

English

Noun

PFD (plural PFDs)

1. (electronics) Initialism of phase-frequency detector.
2. Initialism of personal flotation device.
   • (Can we date this quote?), “RS Quest Rigging Instructions”, in California State University, Sacramento‎, page 3:

     Return your PFD to a hanger on the PFD storage rack.

   • 2025 October 21, Rose George, “‘I knew in my head we were dying’: the last voyage of the Scandies Rose”, in The Guardian‎:

     Above 32 degrees latitude in the Atlantic Ocean, commercial fishing vessels must carry immersion suits. Below that latitude, they must carry lifejackets, also known as personal flotation devices (PFDs). In other waters, the dividing line is 35 degrees. The PFDs have to be on the boat. Fishers do not have to wear them.

3. Initialism of primary flight display.
4. Initialism of process flow diagram.
5. Initialism of photon flux density.

Adjective

PFD (not comparable)

1. (textiles) Initialism of prepared for dyeing.

See also

• PD
• PLL

Further reading

• PFD on Wikipedia.Wikipedia

Anagrams

• PDF, pdf