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Glite Dictionary
🦜 Bird toe pattern 🤖 Robot gripper
heterodactyl foot

heterodactyl foot

9.9
A bird foot with the first two toes pointing backward and the other two pointing forward
  • noun
  • /ˌhɛtərəˈdæktɪl fʊt/
  • Specialized
translation icon : pie heterodáctilo
  • Few bird families exhibit a heterodactyl foot, making it a useful trait for identification.

Examples

  • The trogon is known for its unique heterodactyl foot structure.

  • Researchers examined the anatomy of the heterodactyl foot to understand its evolutionary advantages.

  • The heterodactyl foot of the owl allows it to grip branches effectively.

  • Many birds have a heterodactyl foot for better grasping.

  • The unique arrangement of the heterodactyl foot in the hoatzin helps it navigate through the dense foliage of its rainforest habitat.

  • The tropical bird's heterodactyl foot includes two toes facing backward, which helps it grip tree branches while feeding.

  • Birdwatchers often look for the distinctive heterodactyl foot when identifying species like the jacana.

Surface Forms

heterodactyl foot singular
heterodactyl feet plural

Morphology

heterodactyl + foot

The phrase is directly compositional: 'heterodactyl' describes a particular toe orientation and 'foot' names the anatomical/functional part, so the combined meaning is simply a foot exhibiting heterodactyl characteristics. Although the term is technical/rare, a B1 learner who knows both constituents can transparently infer it refers to a foot (or foot-like gripper) with that toe arrangement.

Etymology

Heterodactyl foot comes from the parts hetero- ('different') and -dactyl ('toe') and paints the image of a bird foot with the first and second toes pointing back and the third and fourth toes pointing forward. So the name means this exact toe arrangement in certain birds.