Noun
The word is derived from pinna
of Pinna
Source: Webster's dictionarySome ferns, such as Hen and Chicken Fern produce new plants at the tips of the fronds' pinnae, which are sometimes referred to as bulbils. Source: Internet
The ear ossicles are pachyosteosclerotic (dense and compact) and differently shaped from land mammals (other aquatic mammals, such as sirenians and earless seals, have also lost their pinnae). Source: Internet
The facial region of skull is relatively small, with pinnae very small or lacking, and the vibrissae are well developed. Source: Internet
The pinnae were free on day 36, and eyes opened later, on days 115–121. Source: Internet
This occurs when the pinnae are still, and the animal can enhance the effect by flapping them. Source: Internet