- A visible mark, such as a footprint, made or left by the passage of a person, animal, or thing.
- Evidence or an indication of the former presence or existence of something; a vestige.
- A barely perceivable indication; a touch: spoke with a trace of sarcasm.
- An extremely small amount.
- A constituent, such as a chemical compound or element, present in quantities less than a standard limit.
- A path or trail that has been beaten out by the passage of animals or people.
- A way or route followed.
- A line drawn by a recording instrument, such as a cardiograph.
- Mathematics.
- The point at which a line, or the curve in which a surface, intersects a coordinate plane.
- The sum of the elements of the principal diagonal of a matrix.
- An engram.
v., traced, trac·ing, trac·es. v.tr.
- To follow the course or trail of: trace a wounded deer; tracing missing persons.
- To ascertain the successive stages in the development or progress of: tracing the life cycle of an insect; trace the history of a family.
- To locate or discover by searching or researching evidence: trace the cause of a disease.
- To draw (a line or figure); sketch; delineate.
- To form (letters) with special concentration or care.
- To copy by following lines seen through a sheet of transparent paper.
- To follow closely (a prescribed pattern): The skater traced a figure eight.
- To imprint (a design) by pressure with an instrument on a superimposed pattern.
- To make a design or series of markings on (a surface) by such pressure on a pattern.
- To record (a variable), as on a graph.
- To make one's way along a trail or course: traced through the files.
- To have origins; be traceable: linguistic features that trace to West Africa.
Occurring in extremely small amounts or in quantities less than a standard limit.
[Middle English, track, from Old French, from tracier, to make one's way, from Vulgar Latin *tractiāre, from Latin tractus, a dragging, course, from past participle of trahere, to draw.]
traceability trace'a·bil'i·ty n.traceable trace'a·ble adj.
traceably trace'a·bly adv.
trace2 (trās)

n.
- One of two side straps or chains connecting a harnessed draft animal to a vehicle or whiffletree.
- A bar or rod, hinged at either end to another part, that transfers movement from one part of a machine to another.
[Middle English trais, from Old French, pl. of trait, a hauling, harness strap, from Latin tractus, a hauling, from past participle of trahere, to haul.]




