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primary feather

primary feather

1 5.2
A long part of a bird's wing at the outer edge that helps the bird fly
  • noun
  • /ˈpraɪˌmɛri ˈfɛðər/
  • Specialized
translation icon : pluma primaria
  • Ornithologists study the primary feathers of birds to understand their flight patterns and behaviors.

Examples

  • He's lost some primary feathers.

  • Hawk owls lack the comblike structures along the outer edge of their primary feathers that give most owls silent flight.

    Academic text (2003)
  • The bird soared gracefully through the sky, its primary feathers catching the sunlight.

  • During the rehabilitation process, the injured bird began to grow back its primary feathers.

Synonyms

feather
vsprimary feather
403 1.0

A light flat part of a bird with a thin middle and many thin hair-like parts

is the specific long wing plumes used directly for flying rather than general covering
primary
vsprimary feather
  • Specialized
2 8.7

A long feather at the outer edge of a bird's wing that helps it fly

focuses on long shape and being used directly for flying
pinion
vsprimary feather
  • Specialized
1 8.2

Large outer wing feathers that birds use to fly

is the specific long plumes at the wing edge not the whole outer part
flight feather
vsprimary feather
  • Specialized
1 4.5

A large stiff feather on a bird's wing or tail that helps it fly

refers only to the long outer wing plumes not to tail plumage
primary quill
vsprimary feather
  • Specialized
8.9

A long outer flight feather on a bird's wing that helps it fly

is used for flying but is less focused on being essential

How Long

primary feather
  • Specialized
1 5.2
tail feather
4 2.4
contour feather
  • Specialized
8.2
down feather
1 3.2

Surface Forms

Morphology

primary + feather

The meaning 'one of the main long feathers on the outer edge of a bird's wing' is directly derivable from combining 'primary' (main/first) with 'feather' (a bird's plume). This simple adjective+noun compositional pattern is cross-linguistically common and would be understandable to a B1 learner who knows both constituents.

Etymology

Primary feather is a simple name from watching birds: primary means 'main' or 'first' and feather is a bird's feather. These long feathers at the outer edge of the wing are the main ones used for 'flight', so the name explains their job.