from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A path.
- n. Physiology A course usually followed by a body part or process.
- n. Physiology A chain of nerve fibers along which impulses normally travel.
- n. Physiology A sequence of enzymatic or other reactions by which one biological material is converted to another.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A footpath or other path or track
- n. A sequence of biochemical compounds, and the reactions linking them, that describe a process in metabolism or catabolism
from the GNU version of the Collaborative International Dictionary of English
- n. A footpath; a beaten track; any path or course. Also used figuratively.
from The Century Dictionary and Cyclopedia
- n. A path; usually, a narrow way to be passed on foot; also, a way or a course of life.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a trodden path
- n. a bundle of myelinated nerve fibers following a path through the brain
Sorry, no etymologies found.