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Pa

PRIMARY MEANINGS OF: Pa

1
 n
a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
2
 n
a unit of pressure equal to one newton per square meter
FULL DEFINITIONS OF: Pa
1

n a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead

Synonyms:
atomic number 91, protactinium, protoactinium
Type 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.
2

n a unit of pressure equal to one newton per square meter

Synonyms:
pascal
Type of:
pressure unit
a unit measuring force per unit area
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