capable of reacting or functioning in two, usually opposite, directions.
(computing) (of a printhead) capable of printing from left to right and from right to left
having two faces or fronts. Archaeology. having the opposite surfaces alike, as some tools. adjective having two faces or surfaces (botany) (of leaves, etc) having upper and lower surfaces differing from each other (archaeol) (of flints) flaked by percussion from two sides along the chopping edge bifacial (bī-fā’shəl) Flaked in such a way as to […]
furnished or fitted with two filaments or threads. Historical Examples Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 Various adjective having two parallel threads, as in the suspension of certain measuring instruments of or relating to a resistor in which the wire is wound in a loop around a coil, the two leads being parallel, […]
having two flagella. Historical Examples Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4 Various adjective (biology) having two flagella: biflagellate protozoans
an acid salt of hydrofluoric acid containing the group HF 2 -, as ammonium bifluoride, NH 4 HF 2.