spiro-, spir-, spiri-
(Greek, speira > Latin, spira: coil, coiled; twisted, turning)
The Greek speira refers to anything which is wound or wrapped around something. In the plural, speirai, it includes the twisted folds or coils of a serpent or of a net; therefore, it refers to anything which is coiled, wreathed, or twisted; such as, a coil of a snake.
Careful, there is another spiro- which means "breath of life; breathing, breath".
2. Etymology: a small structure resembling a cord beginning in the coil of a sweat gland; from Greek speria-, "coil" + aden, "gland" + -itis, "inflammation".
2. Etymology: from Greek speira, "coil" + adenoma, "benign tumor that arises in or resembles glandular tissue".
2. A football that is thrown or kicked and spins while moving in the air: "The player kicked the ball in a spiral between the goal posts for a score."
"The airplane spiraled down from the sky and onto the ground where it was shattered into pieces."2. To increase, to decrease, or to get worse in a continuous and a fast and uncontrolled process: "The unemployment rate has been spiraling higher while the stock market has been spiraling lower."
2. The area farthest from the aperture and nearest the apex on a coiled gastropod shell.
3. A winding line like the threads of a screw
4. Any thing wreathed or contorted; a curl; a twist; a wreath.
When moistened these threads protrude in great numbers.
Motile cells contain a single polar flagellum or a tuft of polar flagella.
These organisms are primarily water forms, although some are parasitic or pathogenic on humans and other higher animals. The type genus is Spirillum.