doubler en · NOUN · etymology 1
Etymology
Etymology tree Proto-Indo-European *dwóh₁ Proto-Indo-European *dwi- Proto-Indo-European *-plos Proto-Indo-European *dwiplós Proto-Italic *dwiplos Proto-Italic *duplos Latin duplus Old French dobleder. Middle English double English double Proto-Indo-European *-yósder. Proto-Italic *-āzios Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English doubler From double (verb) + -er.
Meanings
- One who doubles.
- An instrument for augmenting a very small quantity of electricity, so as to render it manifest by sparks or the electroscope.
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(qualifier: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.
- Part of a distilling apparatus for intercepting the heavier fractions and returning them to be redistilled.
- (qualifier:calico printing) A blanket or felt placed between the fabric and the printing table or cylinder.
- A person employed in a roller mill to fold the hot metal plates in half.
- A device with two electrical plugs that plugs into an electrical outlet, effectively converting the electrical outlet into two; socket converter.
- A diaper insert.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| doublers | Number=Plur | lexicographic |
Deriveds
scan doubler · line doubler · nanodoubler