penna- +

(Latin: feather, feathers; by extension in some situations, wing, wings)

bipennate muscle
A muscle whose fibers are inserted on two sides of a central tendon.
bipennate, bipenniform
1. Having the appearance of a feather with barbs on both sides of the shaft; such as certain muscles.
2. Oblique fibers that converge on both sides of a central tendon.
brevipennate (adjective)
A short-winged bird.

Applied to birds which can not fly, because of their short wings; such as, the ostrich, cassowary, and emu.

The cassowary is a large black, flightless bird, with colorful wattles and a large bony head shield, that resembles an ostrich or emu. It is native to northeastern Australia and New Guinea.

Wattles refer to the fleshy wrinkled and often brightly colored fold of skin hanging from the neck, chin, or throat, of certain birds (chickens and turkeys) or lizards.

1. The tail assembly portion of an aircraft, including the horizontal and vertical stabilizers, elevators, and rudder.
2. Etymology: from early 20th century, French, literally "feathering", as of an arrow.
Characterized by short wings covered with feathers resembling scales, as the penguins.
longipennate, longipennine
Having long wings, or quills.
The earliest writing implements known as "pens" were made from feathers; and so the word pen comes from Latin penna, meaning "quill" or "feather".

Until the invention of steel pens late in the eighteenth century; and long afterward, until the quality was improved and the price lowered, sharpened quills had been in use since about the eighth century A.D.

As the point of the quill became dulled with use, a new point could be made with a sharp knife; and so, we also inherited the term, penknife.

Before the unknown inventor discovered that a penna, or goose quill, could be sharpened for use, the chief writing implement was the calamus, or "sharpened reed", dating back to classic Greek use.

—Based on information from
Thereby Hangs a Tale, Stories of Curious Word Origins
by Charles Earle Funk; Harper & Row, Publishers; New York; 1950; page 223.
penna (s), pennae (pl)
A contour feather of birds that helps to form the outer contour of a bird's plumage, as distinguished from plume or down feathers.
pennaceous, penniform
Like a plume or feather.

Pennaceous feathers have a central shaft (or rachis, "main axis or shaft") with vanes branching off to either side.

These vanes are also called "barbs", that are connected to one another with barbules (pointed projections), or tiny strands that criss-cross to form a kind of mesh that holds all the barbs together and with each other.

1. A long narrow banner or streamer carried on a lance.
2. A pennant, banner, or flag.
3. A pinion; a wing.
4. Etymology: from Middle English, from Old French penon, "streamer, feather of an arrow", from Latin penna, "feather".
pennate, pennated
1. Having a wing; feathered.
2. In the shape of a wing.
3. Having feathers or wings.
1. a distinctive flag in any of various forms; as, a tapering triangular, or swallow-tailed; formerly one carried on a lance by a knight.
2. A pennant.
3. A wing or pinion.
pennoplume, pennopluma
A feather or semiplume.
1. To restrain or to immobilize someone, especially by tying his or her arms.BR> 2. To prevent a bird from flying by removing or binding its wing feathers.
3. A bird's wing, especially the tip of the wing where the stiff flight feathers are found, containing the carpus, metacarpus, and phalanx bones.
pinnate, empennate
1. Resembling a feather.
2. Divided in a feathery manner.
3. Of a compound leaf, having leaflets on each side of an axis or midrib.
4. Having similar parts arranged on each side of a common axis; that is, with lateral processes.

Related "feather, feather-like; soft down, plumage" word units: pinni-, pin-; plum-, -plume; pterido-; ptero-; ptilo-.