helico-, helic-, helici-, heli-, helix-
(Greek: spiral, coil; twisted, bent; spiral-shaped; a coil; by extension, "snail")
2. Having a shape approximating that of a helix; a spiral.
Helicity is in effect the handedness, or chirality, of the spin of a particle.
2. An asexual spore formed by abstriction at the top of a hyphal branch.
The term abstriction, in fungi refers to the formation of asexual spores by cutting off portions of the sporophore (nonsexual, but produces spores in countless numbers) through the growth of dividing partitions.
2. An instrument for drawing helices.
Sori are an assemblage of sporangiaare or tiny globes in which spores are produced on the underside of a fern frond.
2. In mathematics, a surface in the form of a coil or screw.
3. A spiral geometric surface that resembles a thread on a screw.
A warped surface which may be generated by a straight line moving in such a manner that every point of the line will have a uniform motion in the direction of another fixed straight line, and at the same time a uniform angular motion around it.
2 Having the form of a flat coil or flattened spiral.
3. Coiled or curving like a spiral.
4. In geometry, a warped surface generated by a straight line moving so as to cut or touch a fixed helix.
2. A tuba that coils over the shoulder of the musician.