trilobed
Học thuậtThân thiện
Definition
Adjective: - Having three distinct lobes or rounded projections. This term is primarily used in botany and biology to describe the shape of leaves, petals, or other anatomical structures.
Usage
The adjective "trilobed" is used to describe an object, most commonly a leaf, that is divided into three distinct, rounded sections or lobes. It is a technical descriptor. - It typically precedes the noun it modifies (e.g., a trilobed leaf). - It is synonymous with "three-lobed" but is a more formal, single-word term.
Examples
- The trilobed leaf of the sycamore tree is easy to identify.
- Botanists noted the flower's trilobed petal structure under the microscope.
- This fossil exhibits a trilobed shape, characteristic of certain ancient marine arthropods.
Advanced Usage
- Scientific Description: In technical writing, "trilobed" is preferred for concise, precise description.
- The diagnostic feature is the calyx, which is distinctly trilobed.
- Comparative Form: While rare, the comparative "more trilobed" can be used.
- The northern species produces leaves that are more deeply trilobed than its southern relative.
Variants and Related Words
- Trilobate (adj.): A direct synonym meaning having three lobes.
- Three-lobed (adj.): A more common, compound-word synonym with the same meaning.
- Lobed (adj.): A general term for having lobes, which can be prefixed with a number (e.g., five-lobed, seven-lobed).
- Trilobite (n.): An extinct marine arthropod with a three-lobed body plan, sharing the "trilob-" root.
Synonyms
- Three-lobed
- Trilobate
- Tripartite (when referring to division into three parts, not necessarily rounded lobes)
Antonyms
- Entire (of a leaf margin, meaning smooth and undivided)
- Unlobed
Adjective
- (of a leaf shape) divided into three lobes