leaded

1. 1
   adjective

   Containing the element lead, or treated using it in some way.

   Older plumbing solder was leaded, which made the tap water unsafe.

   Restorers found a layer of leaded glaze on the medieval tiles.

   Oppositelead-free, unleaded

2. 2
   adjective

   Containing tetraethyllead, a lead compound that was added to gasoline.

   Many vintage engines were designed to run on leaded gasoline.

   Aviation fuel for some piston aircraft is still leaded.

   Oppositeunleaded

   Note

   A narrower chemistry than the general "containing lead" sense: the lead arrives as tetraethyllead, a compound blended into fuel, so the word almost always sits in front of gasoline. Leaded gasoline is now hard to find in some areas, and the phrase has a historical ring. For pipes, paint or glaze, use the broader sense instead.

3. 3
   adjective

   Held in place by strips of lead, as the glass panes in a stained-glass window.

   The restored chapel features intricately leaded windows from the fifteenth century.

   Antique cabinets sometimes have leaded glass fronts that catch the light.

4. 4
   adjectivecolloquial

   Containing caffeine; used informally of coffee that has not been decaffeinated.

   Keep the leaded pot brewing; the morning crew needs it.

   He saved the leaded brew for mornings and drank decaf at night.

   Similarcaffeinated, regular

   Oppositedecaf, decaffeinated, unleaded

   Note

   A joke borrowed from the gas pump. If fuel comes leaded and unleaded, so can coffee: ordinary coffee is leaded, and decaffeinated coffee is unleaded. The pun depends on the gasoline sense, and it belongs to casual talk at the coffee counter. On a menu or in writing about caffeine, caffeinated is the plain choice.

5. 5
   verb

   Simple past and past participle of lead.

   The glazier leaded the stained-glass panel before installing it.

   They leaded the seams of the roof to keep water out.

   Note

   The regular past of the metalworking verb: a glazier leaded a panel, a roofer leaded the seams, and the work was leaded. The -ed ending is correct here, which sets this verb apart from the guiding verb spelled the same way, whose past is led. In older printing it also described spacing type: a compositor leaded the lines by setting thin strips between them.

6. 6
   SayLEED-idUS/ˈlidɪd/UK/ˈliːdɪd/

   adjective

   Having a lead or leads: the wire terminals by which a component connects to a circuit.

   Hobbyists often prefer leaded components because their wire terminals solder easily.

   The board mixes leaded resistors with surface-mount capacitors.

Showing meanings only. Show all 7