egret vs pinna

egret

noun
  • A plume or tuft of feathers worn as a part of a headdress, or anything imitating such an ornament. 

  • Any of various wading birds of the genera Egretta or Ardea that includes herons, many of which are white or buff, and several of which develop fine plumes during the breeding season. 

  • The flying feathery or hairy crown of seeds or achenes, such as the down of the thistle. 

pinna

noun
  • A feather, wing, fin, or other similar appendage. 

  • The visible part of the ear that resides outside of the head, the auricle; outer ear excluding the ear canal. 

  • A leaflet or primary segment of a pinnate compound leaf. 

How often have the words egret and pinna occurred in a corpus of books? (source: Google Ngram Viewer )