from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The branch of paleontology dealing with the study of fossilized footprints, tracks, burrows, or other traces as evidence of the activities of the organisms that produced them.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A branch of paleontology concerned with the study of trace fossils. It can be divided into paleoichnology and neoichnology.
from the GNU version of the Collaborative International Dictionary of English
- n. The branch of science which treats of fossil footprints.
from The Century Dictionary and Cyclopedia
- n. That branch of paleontology which treats of fossil footprints; the science of fossil footprints; the study of those animals which are known only by their footprints.
Greek ikhnos, footprint + -logy.(American Heritage® Dictionary of the English Language, Fourth Edition)
From ichno- + -logy. (Wiktionary)