cyme
/saim/
Học thuậtThân thiện
Definition
Noun (Botany): A flower cluster, typically more or less flat-topped, in which the central or terminal flower is the first to open. This pattern of development, where the main axis ends in a flower and subsequent growth continues from lateral buds, is called determinate inflorescence.
Usage
The term "cyme" is used specifically in botany to describe a type of inflorescence (flower arrangement) based on its growth pattern. It contrasts with an "indeterminate" inflorescence like a raceme, where the lower or outer flowers open first.
Examples
- The plant was easily identified by its characteristic cyme of small white flowers.
- In a cyme, the blooming progresses from the center outward or from the top downward.
- The gardener noted the cyme structure, where the terminal bud had already bloomed.
Advanced Usage
- Compound Cyme: A more complex structure where each branch of the main cluster is itself a smaller cyme (a cyme of cymes). This creates a broader, often flat-topped, flower head.
- The elderberry bush produces a large, showy compound cyme.
Variants and Related Words
- Cymose (adjective): Having the characteristics of a cyme; arranged in cymes.
- The plant has a cymose inflorescence.
- Cymule (noun): A small or secondary cyme.
Synonyms
- Determinate inflorescence (This is the descriptive term for the growth pattern).
- (No direct, common one-word synonyms; it is a specific botanical term.)
Antonyms
- Raceme (an indeterminate inflorescence where flowers open from the bottom upward).
- Panicle (a branched indeterminate inflorescence).
Noun
- more or less flat-topped cluster of flowers in which the central or terminal flower opens first