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blood

BLUD/blʌd/

Pluralbloods

16 meanings of blood

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  1. 1
    body fluidnouncountable or uncountable
    The red fluid that circulates in the bodies of humans and many animals, carrying oxygen and nutrients, including blood lost during menstruation.

    The doctor explained how blood delivers oxygen to the muscles.

    A healthy adult has about five liters of blood circulating at any moment.

    UsageUsually without a or a plural: lose a lot of blood, a drop of blood.

    Note

    The literal fluid, from which every figurative use on the page is drawn. The spelling varied for centuries: Thomas Browne writes bloud in his Pseudodoxia Epidemica.

    Checked 1 Nov 2026 · 2 facts

  2. 2
    lab samplenouncolloquialcountable
    A laboratory sample of a patient's blood, or the test run on it.

    Your bloods came back normal, so the doctor says you can go home today.

    The ward nurse phoned the lab twice because the morning bloods still had not come back.

    UsageUsually plural: take bloods, do bloods, your bloods came back normal.

    Note

    Clinical shorthand, heard in hospitals and veterinary surgeries alike, where the test and the sample collapse into one word. It most often appears in the plural: "His bloods showed nothing wrong at all," Steve Jamieson writes of a dog in Bilbo the Lifeguard Dog (2016).

    Checked 1 Nov 2026 · 1 fact

    • The quotation is attributed to Steve Jamieson in Bilbo the Lifeguard Dog and concerns a dog undergoing veterinary tests. en.wiktionary.org
  3. 3
    killingnounfigurativelycountable or uncountable
    The shedding of blood; the killing or wounding of people, especially in war or violent conflict.

    The revolution was won at the cost of much blood.

    The mob gathered outside the jail was out for blood.

    UsageCommon in out for blood and want blood, naming a wish for violence.

    Similarbloodshed, slaughter, carnage, killing

    Note

    The violent sense lives in phrases of intent: looking for blood, out for blood, and Addison's "Scene of Blood" in Cato (1713). Bloodshed names the act, but blood here often names the appetite for it: what someone wants rather than what happened.

    Checked 1 Nov 2026 · 3 facts

  4. 4
    birth tiesnouncountable or uncountable
    Descent or family relationship by birth, as distinct from ties made by marriage or adoption; also a person's ancestry, as in royal blood.

    She inherited the estate because she was related to him by blood.

    Among royal families, blood determined who could claim the throne.

    Similardescent, heritage, stock

    Note

    Kinship by birth usually travels in set phrases: related by blood, of our own blood, or Walter Scott's "the blood of Saxon royalty" in Ivanhoe. Background, descent and stock are near synonyms. Blood, however, pictures inheritance as something carried in the body, which is why it can be imagined to speak. "Listen to the voice of your blood," one character urges in Star Trek: The Next Generation. Heritage rarely talks back like that.

    Checked 30 Oct 2026 · 3 facts

    • Walter Scott wrote Ivanhoe. gutenberg.org
    • The exact phrase "the blood of Saxon royalty" occurs in Ivanhoe, spoken by Cedric in Chapter III. en.wikisource.org
    • A character says "Listen to the voice of your blood" in Star Trek: The Next Generation; the speaker is Konmel in "Heart of Glory". en.wiktionary.org
  5. 5
    passionsnouncountable or uncountable
    A person's temper, disposition, or mood, especially regarded as the seat of passion or anger.

    The challenge stirred his blood, and he leapt to his feet.

    Her fiery blood made her quick to take offense.

    UsageCommon in his blood was up (he was angry or excited) and stir the blood.

    Similartemper, temperament, spirit, passion

    Note

    Temper here keeps its old sense of a mixture. In Julius Caesar, Cassius speaks of "greefe and blood ill temper'd," and in Henry IV, Part 2 a man's blood is "inclined to mirth." The idea comes from the humoral theory, in which the balance of bodily fluids set one's mood. Mirth and grief both qualify, so the sense is not limited to anger.

    Checked 30 Oct 2026 · 5 facts

    • Temper historically meant the mixture or proportion of bodily humours. en.wiktionary.org
    • Cassius speaks the quoted words in Julius Caesar. firstfolio.bodleian.ox.ac.uk
    • Henry IV, Part 2 contains the phrase about blood being inclined to mirth. folgerdigitaltexts.org
    • The association between bodily blood and disposition belongs to humoral theory, which attributed temperament to the proportions of bodily fluids. en.wikisource.org
    • This sense of blood encompasses disposition or mood generally, rather than only anger. en.wiktionary.org

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Origin

From Middle English blood, from Old English blōd, from Proto-Germanic *blōþą, possibly from a Proto-Indo-European root *bʰel- ("to swell"), meaning something like "that which bursts out." It is related to Dutch bloed, German Blut, and the Scandinavian blod.

Checked 1 Nov 2026 · 4 facts

  • English blood descends through Middle English blood and Old English blōd from Proto-Germanic *blōþą. en.wiktionary.org
  • A possible further derivation is from Proto-Indo-European *bʰel- meaning 'to swell', with the interpretation 'that which bursts out'. en.wiktionary.org
  • Blood is cognate with Dutch bloed and German Blut. en.wiktionary.org
  • Blood is cognate with Scandinavian blod, found in Danish, Norwegian and Swedish. en.wiktionary.org