Bifid refers to something that is split or cleft into two parts. It may refer to:
* Bifid, a variation in the
P wave
A P wave (primary wave or pressure wave) is one of the two main types of elastic body waves, called seismic waves in seismology. P waves travel faster than other seismic waves and hence are the first signal from an earthquake to arrive at any ...
,
R wave, or
T wave
In electrocardiography, the T wave represents the repolarization of the ventricles. The interval from the beginning of the QRS complex to the apex of the T wave is referred to as the ''absolute refractory period''. The last half of the T wave ...
in an echocardiogram in which a wave which usually has a single peak instead has two separate peaks
*
Bifid cipher
In classical cryptography, the bifid cipher is a cipher which combines the Polybius square with transposition, and uses fractionation to achieve diffusion. It was invented around 1901 by Felix Delastelle.
Operation
First, a mixed alphabet Po ...
, a type of cipher in cryptography
*
Bifid penis
A bifid penis (or double penis) is a rare congenital defect
A birth defect, also known as a congenital disorder, is an abnormal condition that is present at birth regardless of its cause. Birth defects may result in disabilities that may be phy ...
*
Bifid nose, a split nose that can even look like two noses; a fairly common trait in some dog varieties, especially the and its descendants
*
Bifid rib
A bifid rib is a congenital abnormality of the rib cage and associated muscles and nerves which occurs in about 1.2% of humans. Bifid ribs occur in up to 8.4% of Samoans. The sternal end of the rib is cleaved into two. It is usually unilateral. ...
, a congenital abnormality of the human anatomy
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