What does PHB stand for?

Para-Hexadecylaminobenzoate - Clinical chemistry

Para-Hydroxybenzoate - Organic chemistry

Parahydroxy Benzoic Acid (EDCT)

Parliament House Book - Scotland - A publication (DLA)

Parnaiba - Brazil - Airport symbol (OAG)

Per Hop Behavior - A description of the externally observable forwarding treatment

Per Hop Behaviour (SAUS)

Phantom Boat, Inc. - NCIC boat manufacturer code (NCIC)

Photochemical Hole Burning - Spectrometry

Photographic Bulletin (MCD)

Pioneer Hi-Bred Intl - NYSE symbol

Pointy Haired Boss (SAUS)

Poly(hydroxybenzoate) - Organic chemistry

Polyhydroxybutyrate - Organic chemistry

Pre-Homeobox - Genetics

Preventive Health Behavior - Medicine (DMAA)

Program Header Block - Computer science (ELAL)

Prohibit - Telegraphy (PCTE)

Public Health Bibliography

Public Health Service Building