What does PEN mean in Scientific & Educational

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All PEN meanings

What does PEN stand for?

PEN stands for "polyethylene napthalene"

How to abbreviate "polyethylene napthalene"?

"polyethylene napthalene" can be abbreviated as PEN

What is the meaning of PEN abbreviation?

The meaning of PEN abbreviation is "polyethylene napthalene"

What does PEN mean?

PEN as abbreviation means "polyethylene napthalene"