Meanings

several times (as large, over)

to repay double the original amount

there is a huge markup in medicines, making it a profitable field

inspire someone with fresh courage

frequency multiplier

a single seed can eventually produce a great harvest

multiplier (e.g. frequency)

multiplication (e.g. of frequencies)

price book-value ratio

paying (or paying out) double

diploid

secondary electron multiplier

law of multiple proportions

polyploid (organism, cell, etc.)

ploidy

monoploid

haplodiploidy

triploid (organism, cell, etc.)

tetraploid

extended double-precision