whorl


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Related to whorl: whirlpool, loop

whorl

1. Botany a radial arrangement of three or more petals, stamens, leaves, etc., around a stem
2. Zoology a single turn in a spiral shell
3. one of the basic patterns of the human fingerprint, formed by several complete circular ridges one inside another

Whorl

 

a weight attached to a spindle that stabilizes the spindle and enables it to rotate uniformly. Whorls have been known since the late Neolithic period. Originally they were made of clay, and later of stone. From the 11th to the 13th century, whorls made of pink slate were widely distributed in Rus’; they were made near Ovruch in Volyn’ region, where the only deposits of pink slate in Eastern Europe are found. Some slate whorls were inscribed with the names of their owners. The production of whorls in Ovruch ceased after the city’s destruction by the Tatars in the 13th century; as a result, clay whorls again became predominant in Rus’.

whorl

[wərl]
(botany)
An arrangement of several identical anatomical parts, such as petals, in a circle around the same point.
(forensic science)
A fingerprint pattern in which at least two deltas are present with a recurve in front of each.
References in periodicals archive ?
The fingerprints were classified broadly into their four types namely, loops, whorls, arches and composites to find out the frequency of distribution of the fingerprint patterns in the students.
For the index finger of the left hand, the arch and whorl patterns illustrated a uniform distribution in both controls and patients, while the distribution of the loop pattern revealed a statistically significant difference between the 2 groups (p=0.
When the residuals were plotted against whorl height, no obvious change in variance was observed, nor were there any increasing or decreasing linear trends with increasing whorl height (WH), just a very small wavy pattern about one-quarter to one-half the magnitude of the root mean square error (RMSE) on average.
And at the end of The Book of the Long Sun, he refuses to leave the Whorl with the members of his manteion, choosing instead to remain behind with his beautiful but faithless new wife Hyacinth.
Anterior quarter of whorl mostly occupied by kidney (ki) and pericardium (pc).
Fibrosarcomas and myofibroblastic fibrosarcomas have similar cytoplasmic and nuclear features to hemangiopericytoma, but similarly to PNST, tumor cells exhibit a whorl pattern around a collagenous center, but lack concentric perivascular whorls (GOLDSCHMIDT & HENDRICK, 2002; GROSS et al.
Tetrasporangia ovoid, 37-50[micron]m in diameter, 50-60[micron]m long, one or two per whorl (Figs 14-17, Table 1).
In some, the tooth whorl is placed on the upper jaw, curling outward like a spiky elephant trunk.
Shell shape discoidal, number of whorls 3, umbilicus perforate, shell pale horn colour, glossy, depressed, dextral, whorls convex, suture well developed, last whorl expanded, periphery rounded to angulated only in last whorl, but not influencing the aperture, aperture is ovate-lunate, non- operculate, umbilicus broad, surface of the shell closely and obliquely striated.
Pine trees typically grow in annual spurts, putting on one whorl of branches each year (Figures 1 and 2).