An immature feather, before the veins have expanded and while the shaft is full of fluid.
plume, quillView synonyms
- ‘They grew in much the same way Crixa's did, but small, white and red-brown pin feathers began to layer themselves over the bone and muscle.’
- ‘Cockatiels are born nearly naked and pin feathers start to appear at about seven days.’
- ‘Changes in the physical structure of the pin feather during growth may be the most likely explanation for the increased resistance to heat loss in both groups of birds.’
- ‘On that particular afternoon I recall a lot of references to ‘pin feathers’ interspersed with colorful expletives.’
- ‘He could feel the pin feathers, and the grossness of its shape.’