dehisce
/di'his/
Học thuậtThân thiện
Definition
- Verb:
- To burst or split open along a natural line or seam: This term is primarily used in botany and biology to describe the natural opening of a plant structure, such as a seed pod, fruit, or anther, to release its contents (e.g., seeds, pollen, or spores).
Usage Examples
- Verb:
- The ripe pea pods will dehisce in the dry heat, scattering their seeds.
- For fertilization to occur, the anthers must dehisce and release pollen.
- The botanist observed how the capsule dehisced along precise sutures.
Advanced Usage
- "to dehisce spontaneously": to open or split open naturally without external force.
- Many dry fruits are designed to dehisce spontaneously when mature.
- Used in medical contexts to describe the reopening of a surgical wound.
- The surgical incision began to dehisce, requiring immediate attention.
Variants and Related Words
- Dehiscence (n): The act or process of dehiscing; the condition of being dehiscent.
- Seed dispersal often depends on the dehiscence of the fruit.
- Dehiscent (adj): Having the quality of dehiscing; tending to burst open.
- A dehiscent fruit, like a poppy capsule, opens when dry.
- Indehiscent (adj): Not dehiscent; remaining closed at maturity.
- Sunflower seeds are contained within an indehiscent fruit.
Synonyms
- Split open
- Burst open
- Gape open (in specific contexts)
Antonyms
- Remain closed
- Stay shut
Related Phrases / Contexts
- Longitudinal dehiscence: Splitting open lengthwise.
- The bean pod exhibits longitudinal dehiscence.
- Poricidal dehiscence: Opening by pores at the top.
- The anthers of some flowers show poricidal dehiscence.
Verb
- burst or split open
- flowers dehisce when they release pollen