What does PLL stand for?

Pali - Language code (ETLW)

Pall Corp. - NYSE symbol (SAG)

Pallet - Building construction

Papers on Language and Literature: A Journal for Scholars and Critics of Language and Literature - A publication (ANEX)

Parts Load List (MCD)

Passenger Legal Liability - Insurance (AIA)

Peripheral Light Loss

Permanent Logical Link - Telecommunications

Phase-Locked Loop - Computer science (GART)

Pilgrim Lacrosse League (PSS)

Plasma Lockload (AAEL)

Plymouth & Lincoln - Federal Railroad Administration identification code

Polo, IL - Location identifier - FAA (FAAL)

Poly-L-lysine - Also, PL - Biochemistry

Positive Logic Level

Posterior Longitudinal Ligament - Medicine (MELL)

Prelinked Library (SAUS)

Prescribed Load List - Vehicle maintenance operation - Army

Pressure Length Loop (DB)

Prince Line Ltd. - Steamship (MHDW)

Program Load Limit (SAUS)

Prolymphocytic Leukemia - Also, PL - Oncology

Pseudoalcoholic Liver Lesions - Medicine