palmate
/'pælmit/ Cách viết khác : (palmated) /'pælmeitid/
Học thuậtThân thiện
Definition
- Adjective:
- Having a shape resembling a hand with fingers spread: In botany, describes a leaf where multiple leaflets or lobes all originate from a single central point, similar to the fingers radiating from the palm of a hand.
- Having webbed toes: In zoology, describes the feet of certain water birds where the front toes are connected by a web of skin.
Examples
Adjective (Botany):
- The maple tree is known for its distinctive palmate leaves.
- A palmate leaf, like that of a horse chestnut, has several leaflets joined at a central stalk.
Adjective (Zoology):
- Ducks have palmate feet, which make them efficient swimmers.
- The palmate condition of the foot is an adaptation for aquatic life.
Advanced Usage
"Palmately compound": A more specific botanical term for a leaf where the leaflets are separate but all attach at the tip of the petiole.
- The leaves of the buckeye tree are palmately compound, typically with five leaflets.
"Palmately lobed": Describes a simple leaf (not divided into separate leaflets) where the clefts between lobes radiate from a central point.
- The sycamore tree has palmately lobed leaves.
Variants and Related Words
Palmated (adj): An alternative, less common form of 'palmate'.
- The palmated antler of a moose has a broad, flattened shape somewhat resembling an open hand.
Palmation (n): The state or condition of being palmate; the characteristic webbing or radiating structure.
- The degree of palmation on a bird's foot varies between species.
Synonyms
- Hand-shaped: (For botany) Having a form like a hand.
- Web-footed: (For zoology) Having toes connected by skin.
Related Terms (Not Phrasal Verbs)
- Digitate: A close synonym in botany, often used interchangeably with 'palmate' for leaves.
- Lobed: Having projections or divisions, which may be arranged in a palmate pattern.
Adjective
- of a leaf shape; having leaflets or lobes radiating from a common point
- (of the feet of water birds) having three toes connected by a thin fold of skin