英和和英

名詞

doubler (plural doublers)

1. One who doubles.
2. An instrument for augmenting a very small quantity of electricity, so as to render it manifest by sparks or the electroscope.
3. (structural engineering) A metal plate riveted or welded over a preexisting metal structural component to reinforce it and relieve the stress on the preexisting component, or to serve as a patch where part of the original structure has failed or been removed.

   The mechanics fastened a doubler over the hole where the cracked section of the plane's skin had been cut out.

   The airworthiness directive called for riveting a reinforcing doubler to the wing midspar web to keep the spar from buckling under flight loads.

4. Part of a distilling apparatus for intercepting the heavier fractions and returning them to be redistilled.
5. (calico printing) A blanket or felt placed between the fabric and the printing table or cylinder.
6. (metalworking) A person employed in a roller mill to fold the hot metal plates in half.
7. A device with two electrical plugs that plugs into an electrical outlet, effectively converting the electrical outlet into two; socket converter.
8. A diaper insert.

   Synonym: diaper doubler

派生語

語源 2

From double (adjective) +‎ -er.

名詞

doubler (plural doublers)

1. (US, dialect) A tenement house having two families on each floor.
2. (colloquial) A biplane aeroplane or kite.

アナグラム

• Boulder, boulder