spiral's Usage Examples:

It now seems probable that the spiral nebula is the fittest illustration of the transformation of a diffused nebula into a system of sun and planets.

Shell spirally coiled; epipodial tentacles present; operculum thick and calcareous.

The thin-walled spiral or annular tracheae of the protoxylem allow of longitudinal stretching brought about by the active growth in length of the neighboring living parenchymatous cells of a growing organ.

Historical No-one before Hubble imagined that the spiral nebulae might be other galaxies.

flows through the spiral coolers N and M, and finally through the box H, where it is well mixed before passing the outflow thermometer P.

Noel, who had been touring with the Inspiral Carpets as a guitar technician, arrived home and after discovering his brother's dabbling in music, declared that he would join Liam's band, providing he could have complete creative control.

At other times they are at different levels, and are applied over each other, so as to be imbricated, as in lilac, and in the outer scales of sycamore; and occasionally the margin of one leaf overlaps that of another, while it in its turn is overlapped by a third, so as to be twisted, spiral or contortive.

In cases where the internodes are very short and the leaves are closely applied to each other, as in the house-leek, it is difficult to trace the generating spiral.

- Diagram to illustrate the quincuncial aestivation, in which the parts of the flower are arranged in a spiral cycle, so that I and 2 are wholly external, 4 and 5 are internal, and 3 is partly external and partly overlapped by 1.

The arms are set in a spiral form, so that in revolving they not only stir the roots, causing them to rub against each other, but also force them forward from the receiving end,of the cage to the other end.

All rodents, with the sole exception of the dormice, have a caecum, often of great length and sacculated,, as in hares, the water-rat and porcupines; and the long colon in some, as the hamster and water-rat, is spirally twisted upon itself near the commencement.

Club-shaped hydranths with numerous tentacles, generally scattered irregularly, sometimes with a spiral arrangement, or in whorls (" verticillate ").

Synonyms:

curve, curved shape,

Antonyms:

tense, relax, straight line,