# blob

/ˈbɫɑb/ (US) · /blˈɒb/ (UK) · CEFR B1 · Noun

Source: https://englishreference.com/word/blob
Updated: 2026-05-09

## Definition

a small, soft, or shapeless mass of something liquid or sticky. You might see a blob of paint on a table or a blob of jam on your toast.

For teachers: a small, indistinct, or shapeless mass of a substance, typically one that is viscous or liquid. Often used to describe objects that lack a defined outline or structure.

## Examples

- A large blob of blue paint fell onto the white carpet.
- The satellite image showed a mysterious green blob moving slowly across the surface of the ocean.
- In the early stages of the experiment, the cells appeared as a singular, undifferentiated blob under the microscope before they began to specialize and form distinct structures.

## Usage notes

- Commonly followed by the preposition 'of' to specify the substance.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.