bifacial

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bifacial

[bī′fā·shəl]
(botany)
Of a leaf, having dissimilar tissues on the upper and lower surfaces.
(design engineering)
Of a tool, having both sides alike.
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References in periodicals archive ?
The flake is reduced by direct percussion, usually bifacially applied;
Microliths, including a few geometrics, are present along with a number of bifacially backed blades.
While there has been disagreement about the accuracy of these distributional maps, there is general acknowledgment that bifacially flaked stone points are restricted to northern Australia, and backed artefacts are generally found only in the south and east.
The experimental production of handaxes proceeded with the experimenters bifacially reducing slabs less than 70mm thick (see Tables 1 and 2).
For example, Odell & Cowan (1986: 207) found that in a sample of 20 bifacially worked spearheads, they could be used on average three times before suffering catastrophic breakage, and averaged only 2.
Among other point types, bifacially worked points were collected from recent excavations at Sinbuk and Wolpyeong (Figure 3e) in the south-western Korean Peninsula (Lee 2002; 2004).
The tang, which is always at the proximal end of the original blade, is symmetrical and shaped either bifacially or unifacially, depending on the shape of the original blade.