# gemma

/ˈdʒɛmə/ (US) · /dʒˈɛmɐ/ (UK) · CEFR C2 · Noun

Source: https://englishreference.com/word/gemma
Updated: 2026-08-15

## Definition

a small part of a plant or fungus that can break off and grow into a whole new organism. It is a way for some living things to reproduce without seeds.

For teachers: a small cellular body or bud-like structure that detaches from a parent organism to grow into a new individual. This form of asexual reproduction is characteristic of certain fungi, algae, and bryophytes like liverworts.

## Examples

- The liverwort uses a gemma to grow new plants.
- Raindrops hitting the cup-like structures splash the gemma out, allowing it to land nearby and start a new colony.
- In many species of liverworts, the gemma serves as a primary means of vegetative propagation, ensuring genetic continuity across a specific habitat without the need for sexual spores.

## Usage notes

- The plural form is 'gemmae'.

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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.