doubler

名词 doubler:

1. an electronic device that doubles the voltage or the frequency of an input signal

形容词 double:

1. having more than one decidedly dissimilar aspects or qualities-Frederick Harrison
   同义词：double, dual, twofold, two-fold, treble, threefold, three-fold
2. consisting of or involving two parts or components usually in pairs
   同义词：double, dual, duple
3. twice as great or many
   同义词：double, doubled, twofold, two-fold
4. used of flowers having more than the usual number of petals in crowded or overlapping arrangements
   同义词：double
5. used of homologous chromosomes associated in pairs in synapsis
   同义词：bivalent, double
6. large enough for two
   同义词：double
7. having two meanings with intent to deceive
   同义词：double, forked