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    Fungal growth on a plant surface.
    Word of the Day

    Excrescence

    ek-KRES-əns (/ɪkˈkrɛsəns/)noun

    an abnormal outgrowth or enlargement (often used for a growth or unattractive addition).

    Last updated: Thursday 5th March 2026

    📜 Etymology & Origin

    The word excrescence entered English in the late 14th century from the Latin excrescentia, meaning 'a growing out'. This Latin term derives from the verb excrescere, meaning 'to grow out' or 'to increase', itself a combination of ex- ('out') and crescere ('to grow'). This Latin root is also the origin of words like 'crescent' and 'increase', highli

    Quick Answer

    An excrescence is an unnatural or unwanted outgrowth or addition. Derived from the Latin for "to grow out," the term carries negative connotations, highlighting something superfluous, intrusive, or simply out of place. It can describe a physical anomaly like a wart, an unattractive architectural addition, or even an unwelcome linguistic development, serving as a precise descriptor for undesirable growths.

    In a hurry? TL;DR

    • 1An excrescence is an unwanted, unnatural, or abnormal outgrowth or addition.
    • 2It originates from Latin, meaning 'to grow out,' and implies something superfluous.
    • 3The term carries negative connotations, often suggesting something unsightly or intrusive.
    • 4It can describe physical growths, architectural additions, or linguistic anomalies.
    • 5It highlights deviations from the norm that are perceived as undesirable.

    Why It Matters

    This word offers a vivid way to describe unwanted growths, whether literal or metaphorical, that detract from something's natural form or function.

    Quick Answer: An excrescence is an unwanted or unnatural outgrowth or addition, often implying something unattractive or unwelcome.

    • It comes from Latin, meaning "to grow out."
    • The term carries negative connotations, suggesting something out of place.
    • It applies to physical, architectural, and linguistic anomalies.
    • It highlights something superfluous or intrusive.

    Why It Matters: This word provides a precise way to describe something undesirable and intrusive that has grown where it shouldn't.

    What is an Excrescence?

    (ek-KRES-əns, /ɪkˈkrɛsəns/) Part of Speech: noun

    An excrescence describes an abnormal physical growth, such as a wart. It can also refer to something disliked that has been added. Imagine an unattractive extension on a historic building.

    It blends clinical descriptions with aesthetic criticism. The term pinpoints something that feels out of place or shouldn't exist.

    The Word's Journey

    The word "excrescence" reached English in the late 14th century. It originated from the Latin ‘excrescentia’, which means 'a growing out'.

    This Latin term traces back to ‘excrescere’. 'Excrescere' means 'to grow out' or 'to increase', combining 'ex-' (out) and 'crescere' (to grow).

    Shared Linguistic Roots

    Many English words share this Latin lineage with "excrescence." This shows a common theme of growth and development:

    • Crescent: The moon's growing, curved phase.
    • Increase: To become larger or more numerous.
    • Decrease: To become smaller or less numerous.

    Evolution of Meaning

    Initially, "excrescence" simply described any physical outgrowth. This included tree bark or a natural animal protrusion. From the 17th century, its meaning broadened significantly.

    It began to describe superfluous, unsightly, or abnormal additions. This often suggests something intrusive and unwelcome, a deviation from the norm.

    Using 'Excrescence' in Context

    The term "excrescence" applies across various fields. It frequently highlights unwanted additions in biology, urban planning, and language, consistently implying something out of place or detrimental.

    Biological Examples

    In medicine, an excrescence denotes abnormal bodily growths. This includes warts, polyps, or skin tags. Studies published in the 'British Medical Journal' often use such terms for unusual cellular proliferation.

    Unlike a functional bodily part, an excrescence is seen as an intruder.

    Botanical and Architectural Use

    Botanists use it for tree burls or galls, often caused by insects. While part of the plant, they represent a deviation from normal growth.

    In architecture, a modern structure in a historic area might be called an architectural excrescence. This implies the new building spoils the original environment. Prince Charles once famously described a planned addition to the National Gallery as a "monstrous carbuncle."

    Linguistic Excrescences

    Sometimes, an unnecessary sound or letter is added to a word over time. For example, the 'd' in 'sound' came from the Old French 'son'.

    This is known as a linguistic excrescence. It’s a phonological intrusion, a superfluous element that developed over time according to research from Oxford University Press.

    Practical Examples and Usage

    Use "excrescence" when an addition is profoundly negative. For instance:

    "The new security barrier was deemed an urban excrescence, blocking the ancient pathway," according to local urban planners. This highlights the undesirable nature of the addition.

    In a literary context, a character might describe an overly ornate piece of furniture as a "baroque excrescence," implying excessive and unwelcome decoration.

    Compared to Similar Terms

    TermConnotationExample
    ExcrescenceUnwanted, ugly, abnormal growthA tumour, an ugly building extension
    ProtrusionSimply sticking out, neutral or functionalA chin, a button
    AppendixConnected but often superfluous or vestigialThe human appendix
    GrowthGeneral increase in size; can be positiveEconomic growth, plant growth

    Unlike a generic "growth" which can be positive, an excrescence almost always carries a negative connotation. Similarly, "protrusion" simply describes something sticking out, without the judgement of being unwanted or ugly, as explained by the Oxford English Dictionary.

    Cultural Significance

    The use of "excrescence" often reflects societal values regarding aesthetics and utility. Calling something an excrescence is a strong statement of disapproval. Find more examples of strong linguistic disapproval on Wikipedia's page on pejorative terms.

    Frequently Asked Questions

    What kind of "growth" is an excrescence?

    It's an abnormal or unwanted growth, often physical, but can also refer to non-physical additions like an ugly architectural element.

    Can an excrescence be a good thing?

    No, the term "excrescence" nearly always carries a negative connotation, implying something undesirable, superfluous, or unsightly.

    How is 'excrescence' different from other words for growths?

    "Excrescence" specifically implies abnormal development or an unwelcome addition, unlike general terms like "growth" or "enlargement" which can be neutral or positive.

    • It implies something ugly, superfluous, or out of place.
    • The word stems from Latin words meaning "to grow out."
    • It applies across biological, architectural, and linguistic contexts.
    • Using "excrescence" conveys strong disapproval of an addition.

    Example Sentences

    Sources & References