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Fin or flipper
Answer for the clue "Fin or flipper ", 5 letters:
pinna
Alternative clues for the word pinna
Word definitions for pinna in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Byssus \Bys"sus\, n.; pl. E. Byssuses ; L. Byssi .[L. byssus fine flax, fine linen or cotton, Gr. by`ssos .] A cloth of exceedingly fine texture, used by the ancients. It is disputed whether it was of cotton, linen, or silk. (Zo["o]l.) A tuft of long, tough ...
Usage examples of pinna.
The Epacris and the Boronia pinnata and Boronia serrulata, and also Star-hair made a pink carpet.
The pinnae move forwards and at the same time sink downwards, whilst the main petiole rises considerably.
A pinna was cemented with shellac on the summit of a little stick driven firmly into the ground, immediately beneath a pair of leaflets, to the midribs of both of which excessively fine glass filaments were attached.
When he slid his thumb back and forth across the smooth leather, he felt not what was there but what might soon be available for his caress: delicately shaped ridges of cartilage forming the auricula and pinna, the graceful curves of the channels that focused sound waves inward toward the tympanic membrane.
The petiole of a leaf was fixed to a cork support, close to the point whence the four pinnae diverge, with a short fine filament cemented longitudinally to one of the two terminal pinnae, and a graduated semicircle was placed close beneath it.
The leaflets move towards the apex of the pinna and become imbricated, and the pinnae then look like bits of dangling string.
The pinnae themselves move downwards, and at the same time backwards or towards the stem of the plant.
The four pinnae also approach each other closely, and the whole leaf is thus rendered very compact.
It consists of a long petiole bearing only two pinnae (here represented as rather more divergent than is usual), each with two pairs of leaflets.
The pinnae also approach each other closely, so that the four terminal leaflets come together.
The hinder pairs of pinnae likewise sink downwards, but do not converge, that is, move towards the apex of the leaf.
But the pinnae at the same time sink greatly, and sometimes hang almost perpendicularly downwards.
The pinnae approach one another, but remain in the same plane as during the day.
Now in these three latter cases, though the pinnae do not mutually protect one another at night, yet after having sunk down they expose, as does a dependent sleeping leaf, much less surface to the zenith and to radiation than if they had remained horizontal.
With this latter plant, moreover, the pinnae converge in the evening by a steady movement, whereas during the day they are continually converging and diverging to a slight extent.