1

sour

play
adjective \ˈsau̇(-ə)r\

Definition of sour

  1. 1 :  causing or characterized by the one of the four basic taste sensations that is produced chiefly by acids <sour pickles> — compare bitter, salt, sweet

  2. 2a (1) :  having the acid taste or smell of or as if of fermentation :  turned <sour milk> (2) :  of or relating to fermentationb :  smelling or tasting of decay :  rancid, rotten <sour breath>c (1) :  bad, wrong <a project gone sour> (2) :  hostile, disenchanted <went sour on Marxism>

  3. 3a :  unpleasant, distastefulb :  cross, sullenc :  not up to the usual, expected, or standard quality or pitch

  4. 4 :  acid in reaction —used especially of soil

  5. 5 :  containing malodorous sulfur compounds —used especially of petroleum products

sourish

play \ˈsau̇(-ə)r-ish\ adjective

sourly

adverb

sourness

noun

Examples of sour in a sentence

  1. The milk had turned sour.

  2. He made a sour face.

Origin and Etymology of sour

Middle English, from Old English sūr; akin to Old High German sūr sour, Lithuanian sūrus salty


First Known Use: before 12th century


2

sour

noun

Definition of sour

  1. 1a :  something sourb :  the primary taste sensation produced by acid stimuli

  2. 2 :  a cocktail consisting of a liquor (as whiskey), lemon or lime juice, sugar, and sometimes ice

Before 12th Century

First Known Use of sour

before 12th century

Other Alcoholic Beverage Terms


3

sour

verb

Definition of sour

  • intransitive verb
    1. :  to become sour

    2. transitive verb
    3. :  to make sour

    Examples of sour in a sentence

    1. Her disposition has soured in recent years.

    2. Jealousy has soured their relationship.

    3. His experiences have soured him.

    4. The team's victory was soured by an injury to one of their best players.

    14th Century

    First Known Use of sour

    14th century



    SOUR Defined for English Language Learners

    1

    sour

    play
    adjective \ˈsau̇(-ə)r\

    Definition of sour for English Language Learners

    • : having an acid taste that is like the taste of a lemon

    • : having the unpleasant taste or smell of food that is no longer fresh

    • : unpleasant or unfriendly


    2

    sour

    noun

    Definition of sour for English Language Learners

    • : an alcoholic drink that has a sour taste


    3

    sour

    verb

    Definition of sour for English Language Learners

    • of food : to lose freshness and get an unpleasant taste or smell : to become sour

    • : to become unpleasant or unfriendly

    • : to make (someone or something) unpleasant or unfriendly


    SOUR Defined for Kids

    1

    sour

    play
    adjective \ˈsau̇r\

    Definition of sour for Students

    sourer

    sourest

    1. 1 :  having an acid or tart taste <a sour fruit>

    2. 2 :  having spoiled :  not fresh <sour milk>

    3. 3 :  suggesting decay <a sour smell>

    4. 4 :  not pleasant or friendly <a sour look>

    sourly

    adverb <He looked at me sourly enough but said nothing. — Robert Louis Stevenson, Treasure Island>

    sourness

    noun

    2

    sour

    play
    verb

    Definition of sour for Students

    soured

    souring

    1. 1 :  to make or become acid or tart in taste (as by spoiling) <The milk soured.>

    2. 2 :  to lose or cause to lose interest or enthusiasm <He soured on trying new stunts following the mishap.>

    3. 3 :  to harm or damage <The misunderstanding soured their friendship.>


    Medical Dictionary

    1

    sour

    play
    adjective \ˈsau̇(ə)r\

    Medical Definition of sour

    1. :  causing, characterized by, or being the one of the four basic taste sensations that is produced chiefly by acids—compare bitter, salt 2, sweet

    sourness

    noun

    2

    sour

    noun

    Medical Definition of sour

    1. :  the primary taste sensation produced by acid stimuli



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