English Reference

Word

SPD

Phoneticsspd

Definitions

01German political party

B2

n. Stands for the Social Democratic Party of Germany (Sozialdemokratische Partei Deutschlands).

n. Abbreviation for the Sozialdemokratische Partei Deutschlands, one of the major political parties in Germany.

“The SPD formed a coalition government after the recent elections in Germany.”

“Political analysts debated whether the SPD would maintain its traditional worker-focused platform or shift toward more centrist economic policies.”

Formal

02sensory processing disorder

C1 · Medicine

n. Stands for Sensory Processing Disorder, a condition where the brain has trouble receiving and responding to information that comes in through the senses.

n. Abbreviation for Sensory Processing Disorder, a neurological condition where sensory signals are not organized into appropriate responses.

“Children with SPD may find loud noises or certain clothing textures very overwhelming.”

“Occupational therapy is often recommended for patients diagnosed with SPD to help them regulate their responses to environmental stimuli.”

Technical

03surge protective device

C2 · Electronics

n. Stands for Surge Protective Device, a tool that protects electrical equipment from sudden spikes in voltage.

n. Abbreviation for Surge Protective Device; a component intended to limit transient overvoltages and divert surge currents.

“You should install an SPD to protect your computer during a lightning storm.”

“The industrial electrical panel was equipped with a high-capacity SPD to prevent damage to the sensitive manufacturing controllers.”

Technical

Synonyms

surge protector

04serial presence detect

C2 · Computing

n. Stands for Serial Presence Detect, a way for a computer to automatically know what kind of memory is installed.

n. Abbreviation for Serial Presence Detect, an EEPROM feature on a RAM module that communicates its speed and timings to the BIOS.

“The motherboard reads the SPD data to set the correct memory speed.”

“Overclockers often manually override the SPD settings in the BIOS to achieve higher performance than the manufacturer's default specifications.”

Technical

05personality disorders

C2 · Psychology

n. Stands for several mental health conditions, such as Schizoid or Schizotypal Personality Disorder.

n. Abbreviation for various personality disorders in psychiatric contexts, including Schizoid (SPD), Schizotypal (StPD), or Sadistic (SPD) personality disorders.

“The doctor reviewed the criteria for SPD before making a final diagnosis.”

“Differential diagnosis between various forms of SPD requires a thorough clinical interview to distinguish between social withdrawal and eccentric behavior.”

Technical

Real-World Examples

“Photograph: Fabrizio Bensch/Reuters The Saxony-Anhalt election had been seen as the biggest test yet for Merz, who is very unpopular, along with his government, a coalition with the SPD.”
The Guardian · 7 Sept 2026
“While Klingbeil of the centre-left SPD, the junior partners in the ruling coalition, backs a levy, the centre-right CDU party of Chancellor Friedrich Merz is against it.”
The Local · 23 Aug 2026

Etymology

Abbreviation

Borrowed from German SPD (“Sozialdemokratische Partei Deutschlands”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Domains

ComputingElectronicsMedicinePsychology

This entry

Level
C2 · Proficiency
Frequency
Frequent
Updated

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English Reference