They used truth serum.
Source: tatoeba (1683790)
Serum
/ˈsɪɹəm/
Synonyms for "serum" (116 found)
Ranked by relevance and common usage.
Closest matches (24)
Noun(4 words)
agglutininallergenanaphylactinantiantibodyantibodyantigenantiserumantitoxic serumantitoxinantiveninarterial bloodarterial transfusionbloodblood bankblood cellblood countblood donorblood donor centerblood groupblood grouping
Strong matches (34)
blood pictureblood plateletblood pressureblood serumblood substituteblood transfusionbloodmobilebloodstreamchylecirculationclinical dextrancolostrumdextrandirect transfusiondischargedrip transfusionerythrocyteexchange transfusionexsanguination transfusionexsanguino transfusion
Noun(2 words)
cosmetic serumfacial serum
Related words (58)
hemometerhumorichorincomplete antibodyinterferonisoantibodylachrymalactationleukocyteleukorrhealifebloodlymphmattermilkmucormucusneutrophilopsoninpeccant humorperfusion
Show 34 more words
phagocytephlegmplasmaplasma substituteplasma transfusionprecipitinpreventivepurulencepusreciprocal transfusionred corpusclereplacement transfusionrh factorrh-negativerh-positiverh-typerhesus factorrheumsalivasaniesserous fluidserum transfusionsnotsuppurationsweattearteardropthe whitestransfusiontype ourinevenous bloodvenous transfusionwhite corpuscle
Noun(4 words)
immune serumserous fluidskin serumtopical serum
Choosing the right synonym
- Closest matches in this entry: blood serum, agglutinin, allergen, anaphylactin, antiantibody.
- Sentence evidence is available for serum, so synonym choice can be checked against real usage rather than a flat word list.
- Ranking signals come from wordnet, opengloss, moby, derived_reverse, and related lexical sources.
Synonym selection checklist
- Match the part of speech before comparing meanings.
- Check whether the synonym changes intensity, formality, or emotional tone.
- Read the replacement inside the full sentence, not just beside "serum".
- Prefer the clearest word over the most unusual word when writing for speed or comprehension.
When not to replace "serum"
Keep "serum" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
If two options seem close, choose the one that best matches the audience and purpose of the sentence.
Replacement workflow
1. Preserve meaning
Choose a synonym only if it keeps the core idea of "serum" intact in the sentence you are editing.
2. Tune tone
Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.
3. Re-read context
Read the full sentence after the swap. Keep the synonym only when the sentence becomes clearer or more precise.
Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
Final fit check
After choosing a replacement for "serum", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.
If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "serum" or choose a simpler alternative from the closest-match group.
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
More general
12 entriesMore specific
11 entriesCollocations
5 entriesantiserum preparationblood serumserum levelserum sampleserum test
Inflections
1 entriesDerivations
1 entriesTranslations
45 translations across 38 languages.
Ancient Greek
1 entries- ὀρός noun (yellowish fluid obtained from blood)
Arabic
2 entries- مَصْل noun (yellowish fluid obtained from blood)
- مَصْل دَم noun (yellowish fluid obtained from blood)
Armenian
1 entries- շիճուկ noun (yellowish fluid obtained from blood)
Belarusian
1 entries- сыро́ватка noun (yellowish fluid obtained from blood)
Bulgarian
1 entries- се́рум noun (yellowish fluid obtained from blood)
Catalan
1 entries- sèrum noun (yellowish fluid obtained from blood)
Chinese Mandarin
1 entries- 血清 noun (yellowish fluid obtained from blood)
Czech
1 entries- sérum noun (yellowish fluid obtained from blood)
Danish
1 entries- serum noun (yellowish fluid obtained from blood)
Dutch
1 entries- serum noun (yellowish fluid obtained from blood)
Esperanto
1 entries- serumo noun (yellowish fluid obtained from blood)
Finnish
3 entries- seerumi noun (yellowish fluid obtained from blood)
- verihera noun (yellowish fluid obtained from blood)
- veriseerumi noun (yellowish fluid obtained from blood)
French
1 entries- sérum noun (yellowish fluid obtained from blood)
Galician
1 entries- soro noun (yellowish fluid obtained from blood)
German
1 entries- Serum noun (yellowish fluid obtained from blood)
Greek
1 entries- ορός noun (yellowish fluid obtained from blood)
Hebrew
1 entries- נסיוב noun (yellowish fluid obtained from blood)
Hungarian
2 entries- szérum noun (yellowish fluid obtained from blood)
- vérsavó noun (yellowish fluid obtained from blood)
Indonesian
1 entries- serum noun (yellowish fluid obtained from blood)
Italian
1 entries- siero noun (yellowish fluid obtained from blood)
Japanese
1 entries- 血清 noun (yellowish fluid obtained from blood)
Korean
1 entries- 혈청 noun (yellowish fluid obtained from blood)
Macedonian
1 entries- серум noun (yellowish fluid obtained from blood)
Malay
1 entries- serum noun (yellowish fluid obtained from blood)
Navajo
1 entries- dił bitooʼ noun (yellowish fluid obtained from blood)
Persian
2 entries- خونابه noun (yellowish fluid obtained from blood)
- سرم noun (yellowish fluid obtained from blood)
Polish
1 entries- surowica noun (yellowish fluid obtained from blood)
Portuguese
1 entries- soro noun (yellowish fluid obtained from blood)
Romanian
1 entries- ser noun (yellowish fluid obtained from blood)
Russian
1 entries- сы́воротка noun (yellowish fluid obtained from blood)
Serbo-Croatian
2 entries- sérum noun (yellowish fluid obtained from blood)
- се́рум noun (yellowish fluid obtained from blood)
Slovak
1 entries- sérum noun (yellowish fluid obtained from blood)
Slovene
1 entries- serum noun (yellowish fluid obtained from blood)
Spanish
1 entries- suero noun (yellowish fluid obtained from blood)
Thai
2 entries- ซีรัม noun (yellowish fluid obtained from blood)
- น้ำเหลืองของเลือด noun (yellowish fluid obtained from blood)
Turkish
1 entries- serum noun (yellowish fluid obtained from blood)
Ukrainian
1 entries- сиро́ватка noun (yellowish fluid obtained from blood)
Vietnamese
1 entries- huyết thanh noun (yellowish fluid obtained from blood)
Sample sentences
11 total sentences available.
Have you ever received injections of serum of horse, beef, lamb, or another animal?
Source: tatoeba (6809331)
Will this serum cure COVID?
Source: tatoeba (10359537)
After years of research, Tom made a serum that could cure cancer.
Source: tatoeba (10359539)
Showing 4 of 11 available sentences.
Common questions
What are the closest synonyms for "serum"?
Closest matches include blood serum, agglutinin, allergen, anaphylactin, antiantibody.
How should I check whether a synonym fits "serum"?
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.