crenation
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Definition
- Noun:
- A rounded, scalloped, or notched projection on an edge: "crenation" refers specifically to one of a series of small, rounded, tooth-like projections or the notches between them, forming a scalloped outline along a margin or edge.
- A biological and histological term: In biology, it commonly describes the scalloped or notched appearance of the edge of a structure, such as a plant leaf, a piece of cloth, a seashell, or a red blood cell that has shriveled in a hypertonic solution.
Usage Examples
- Noun:
- The leaf's margin had a distinct crenation, giving it a beautifully scalloped appearance.
- Under the microscope, the hypertonic solution caused the red blood cells to exhibit crenation, losing their smooth, round shape.
- The crenation along the hem of the antique cloth was a sign of delicate craftsmanship.
Advanced Usage
- "Crenation of red blood cells": A specific process in physiology where cells shrink and develop a spiky, scalloped border due to water loss in a hypertonic environment.
- The experiment demonstrated the crenation of erythrocytes when placed in a saline solution with high salt concentration.
Variants and Related Words
- Crenate (adj): Having a margin with rounded scallops or teeth.
- The botanist identified the plant by its crenate leaves.
- Crenulated (adj): Finely or minutely crenate.
- The crenulated edge of the fossil was remarkably well-preserved.
Synonyms
- Scalloping: Forming a series of curved projections.
- Indentation: A notch or recess in a surface or edge. (Note: "Indentation" is more general, while "crenation" implies a specific, rounded, tooth-like series.)
Related Terms (Not Phrasal Verbs)
- Echinocyte: The technical term for a crenated red blood cell.
- Hypertonicity: The condition of a solution having a higher solute concentration, which can cause crenation in cells.
Noun
- one of a series of rounded projections (or the notches between them) formed by curves along an edge (as the edge of a leaf or piece of cloth or the margin of a shell or a shriveled red blood cell observed in a hypertonic solution etc.)