Pr

symbol

the chemical element praseodymium.

1. pair.

   patterned gloves, £7.99/pr

2. per.

   $6 pr day

1. proportional representation.

   PR has been a success in Germany

2. public relations.

   we did a lot of PR and mounted a big advertising campaign

3. Puerto Rico.

noun, symbol

the chemical element of atomic number 59, a soft silvery-white metal of the lanthanide series.

late 19th century: modern Latin, from German Praseodym, from Greek prasios ‘leek-green’ (because of its green salts) + German Didym ‘didymium’.

noun

an electoral system in which parties gain seats in proportion to the number of votes cast for them.