lồi
Definition
- Adjective:
- Convex: Having a surface or shape that curves or bulges outward, like the exterior of a sphere or a lens.
- Prominent / Bulging / Protruding: Sticking out from a surface; projecting outward.
Usage Examples
- Adjective:
- Kính lúp có thấu kính lồi. (A magnifying glass has a convex lens.)
- Con ếch có đôi mắt lồi. (The frog has bulging eyes.)
- Bề mặt của quả bóng là một mặt lồi. (The surface of a ball is a convex surface.)
Advanced Usage
- In Mathematics (Geometry): A convex polygon is one where all interior angles are less than 180°, and any line segment connecting two points inside the polygon lies entirely within it.
- Hình tam giác là một đa giác lồi. (A triangle is a convex polygon.)
Variants and Related Words
- Lồi lõm (adj): Uneven, bumpy; convex and concave. Describes a surface with alternating protrusions and indentations.
- Con đường lồi lõm nhiều ổ gà. (The road is bumpy with many potholes.)
Synonyms
- Convex: Curved outward.
- Bulging: Swelling outward.
- Protruding: Extending beyond the main surface.
Related Idioms
- Mắt lồi: A descriptive phrase meaning "protruding eyes."
- Cá vàng có mắt lồi. (Goldfish have protruding eyes.)
adj
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convex; prominent
-
lồi lõmconvex and concave
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