amygdaloidal
Học thuậtThân thiện
Definition
- Adjective:
- Shaped like an almond: Having the form or outline of an almond nut.
Usage
The adjective "amygdaloidal" is a technical term primarily used in geology and anatomy. It describes objects, structures, or formations that possess an elongated, oval shape with tapered ends, resembling the seed of an almond tree. - In geology, it most commonly modifies the noun "structure" or describes volcanic rocks containing almond-shaped cavities (amygdules). - In anatomy, it is a less common but precise descriptor for certain body parts.
Examples
- Geological Context:
- The basalt flow exhibited a distinct amygdaloidal texture, filled with secondary minerals.
- They studied the amygdaloidal cavities in the ancient lava.
- Anatomical/General Context:
- The surgeon noted the amygdaloidal shape of the gland. (This usage is rare and highly technical.)
Advanced Usage
- "Amygdaloidal structure": A standard geological phrase referring to the characteristic texture of certain igneous rocks.
- The identification of an amygdaloidal structure helps classify the rock's formation history.
Variants and Related Words
- Amygdule (n): A small, almond-shaped cavity or vesicle in a volcanic rock, often filled with minerals such as zeolite or calcite.
- The amygdules in this specimen are filled with quartz.
- Amygdaloid (n): A type of volcanic rock characterized by an amygdaloidal structure.
- The cliff face was composed of a dark amygdaloid.
Synonyms
- Almond-shaped: The direct and more common synonym.
- Ovoid: Egg-shaped; similar but not precisely tapered at both ends like an almond.
- Elliptical: Shaped like an ellipse; a more general geometric term.
Notes on Meaning
The core meaning of "amygdaloidal" is strictly "almond-shaped." It does not describe taste, color, or any property of the almond other than its characteristic seed shape. Its application is almost exclusively scientific.
Adjective
- shaped like an almond