adder

• Sustantivo con varios significados: puede referirse a una persona que realiza sumas, a una máquina para sumar números, o a una pequeña víbora terrestre común en el norte de Eurasia.

A noun with multiple meanings: it can refer to a person who performs addition, a machine that adds numbers, or a small terrestrial viper common in northern Eurasia.

1. Person who adds numbersB2formal

   A person who performs addition, typically in a professional or clerical context.

   Persona que suma

   • The adder double-checked the totals for the annual report.
   • She worked as an adder in the accounting department.
   • The team of adders ensured all invoices were correctly summed.

   Sinónimoscalculatorcomputerreckonersummer

2. Adding machineB1formaltechnical

   A mechanical or electronic device used to perform addition calculations.

   Sumadora

   • The old adder in the office still works perfectly.
   • Before calculators, businesses relied on mechanical adders.
   • He used an adder to tally the day's sales.

   Sinónimosadding machine

3. Venomous snakeB1formalbritishscientific

   A small terrestrial viper common in northern Eurasia, known for its distinctive zigzag pattern.

   Víbora común europea

   • The adder is the only venomous snake native to the UK.
   • We spotted an adder basking on a rock during our hike.
   • Adders hibernate during the winter months.

   Sinónimoscommon viperviper