PB

Pronunciation (US):

(GB):

 Dictionary entry overview: What does PB mean? 

• PB (noun)
  The noun PB has 4 senses:

1. a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey

2. a unit of information equal to 1000 terabits or 10^15 bits

3. a unit of information equal to 1000 terabytes or 10^15 bytes

4. a unit of information equal to 1024 tebibytes or 2^50 bytes

  Familiarity information: PB used as a noun is uncommon.

 Dictionary entry details 

• PB (noun)

Sense 1

Meaning:

A soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey

Classified under:

Nouns denoting substances

Synonyms:

atomic number 82; lead; Pb

Context example:

the children were playing with lead soldiers

Hypernyms ("Pb" is a kind of...):

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

Hyponyms (each of the following is a kind of "Pb"):

hard lead (unrefined lead that is hard because of the impurities it contains)

antimonial lead; hard lead (a lead alloy that contains about 5% antimony)

pig lead (lead that is cast in pigs)

Holonyms ("Pb" is a substance of...):

cerussite; white lead ore (a mineral consisting of lead carbonate that is an important source of lead)

galena (soft blue-grey mineral; lead sulfide; a major source of lead)

Sense 2

Meaning:

A unit of information equal to 1000 terabits or 10^15 bits

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

Pb; Pbit; petabit

Hypernyms ("Pb" is a kind of...):

computer memory unit (a unit for measuring computer memory)

Meronyms (parts of "Pb"):

Tb; Tbit; terabit (a unit of information equal to 1000 gigabits or 10^12 (1,000,000,000,000) bits)

Holonyms ("Pb" is a part of...):

Eb; Ebit; exabit (a unit of information equal to 1000 petabits or 10^18 bits)

Sense 3

Meaning:

A unit of information equal to 1000 terabytes or 10^15 bytes

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

PB; petabyte

Hypernyms ("PB" is a kind of...):

computer memory unit (a unit for measuring computer memory)

Meronyms (parts of "PB"):

TB; terabyte (a unit of information equal to 1000 gigabytes or 10^12 (1,000,000,000,000) bytes)

Holonyms ("PB" is a part of...):

EB; exabyte (a unit of information equal to 1000 petabytes or 10^18 bytes)

Sense 4

Meaning:

A unit of information equal to 1024 tebibytes or 2^50 bytes

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

PB; pebibyte; petabyte; PiB

Hypernyms ("PB" is a kind of...):

computer memory unit (a unit for measuring computer memory)

Meronyms (parts of "PB"):

TB; tebibyte; terabyte; TiB (a unit of information equal to 1024 gibibytes or 2^40 (1,099,511,627,776) bytes)

Holonyms ("PB" is a part of...):

EB; EiB; exabyte; exbibyte (a unit of information equal to 1024 pebibytes or 2^60 bytes)

 Context examples 

The study found that 60% of the objects or products sampled contained BPA, while PBs were found in 80% of the items.

(Babies in neonatal intensive care units are exposed to harmful chemical substances found in plastic, University of Granada)

Both BPA and PBs can be released when these materials are used, either due to wear of the plastic polymer or by being exposed to the very pH and temperature conditions that foster their release, warns the UGR Professor.

(Babies in neonatal intensive care units are exposed to harmful chemical substances found in plastic, University of Granada)

The researchers also observed high concentrations of PBs (greater than 100ng/g) in several items, such as the protective eye covers used when administering phototherapy to the baby, the aforementioned patterned transparent film dressings (surgical tape), intravenous catheters, and the intravenous infusion extension kit.

(Babies in neonatal intensive care units are exposed to harmful chemical substances found in plastic, University of Granada)

A multidisciplinary team of scientists from Granada has warned for the first time of the presence of bisphenol A (BPA) and parabens (PBs) in a wide range of plastic medical devices, fabrics, personal care products (including topical creams), and nutritional supplements in hospital neonatal intensive care units (NICUs), coming into direct contact with new-born babies.

(Babies in neonatal intensive care units are exposed to harmful chemical substances found in plastic, University of Granada)