- Running in identical course; said of stems twining round a support, or of spiral succession of leaves on stems and their particular limbs.
- relocating similar course; said of a lever or pulley where opposition therefore the actuating power tend to be both for a passing fancy side of the fulcrum or axis.
- In mech., having, as a lever, the power and weight for a passing fancy region of the fulcrum, so both move up or down collectively. See lever.
- In botany, having a similar spiral arrangement associated with leaves regarding the stem and limbs; having the spires operating in identical path: against heterodromous.