from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Having two faces, fronts, or façades.
- adj. Having two opposing surfaces that are alike.
- adj. Archaeology Flaked in such a way as to produce a cutting edge that is sharp on both sides. Used of a stone tool.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having two faces or opposing surfaces
- adj. Having two sharp cutting edges
from the GNU version of the Collaborative International Dictionary of English
- adj. Having the opposite surfaces alike.
from The Century Dictionary and Cyclopedia
- Having the opposite surfaces alike.
- In botany, having the opposite faces unlike: as, the bifacial arrangement of the parenchyma or green pulp upon the two faces of a leaf. Also dorsiventral.
- Having two fronts or principal faces; specifically, having two human faces turned in opposite directions, as a medal or an image.
- In geometry, having two distinguishable sides or faces.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. having two faces or fronts
Sorry, no etymologies found.
The company says the cells are less than 50 microns, or less than two-thousandths of an inch, making them the thinnest in production, and bifacial, meaning they can capture sun energy from both faces.
The Mahaffy Cache consists of 83 stone implements ranging from salad plate-sized, elegantly crafted bifacial knives and a unique tool resembling a double-bitted ax to small blades and flint scraps.
Besides the ochre, some of the more spectacular finds at the cave over the past few years include the oldest known and dated bone tools in the world; the earliest known evidence for fishing in the world; and highly sophisticated bifacial spearheads or points made in fine-grained stone.
Microdrills for boring out beads, and fragments of carefully knapped bifacial knives also turned up.
Discovery of a fluted bifacial point at the site of Uptar in northeastern Siberia may force archaeologists to reconsider the origins of the Clovis point, a hallmark of the New World Paleoindian tradition.
She classified other tools by their shape, producing a list of polyhedrons, discoids, spheroids, bifacial points, ovates, and outils écaillés scaled tools.
"Ranec's mother's people, the Aterians, make a spear point with bifacial retouch."
To make a bifacial tool (sharpened on two sides to hold an edge longer and able to penetrate flesh better) the knapper then can switch to the next tool in the kit, a soft hammer billet.
Also in SANYO's line-up is a product that has seeded architects and building owners across the U.S. with a little green inspiration - the HIT® Double, SANYO's bifacial offering.
"SANYO's HIT Double glass-on-glass modules utilize the bifacial characteristics of HIT cells to generate up to 30% more energy from the panel's back-side, depending on mounting surface conditions," said Atlanta-based architect and SANYO customer Inman Solar co-founder