Bifid
Encyclopedia
Bifid refers to something that is split or cleft into two parts. It may refer to:
- bifid ribBifid ribA 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...
, a congenital abnormality of the human anatomy - bifid penisBifid penisA bifid penis is a rare congenital defect where two genital tubercles develop.Historically, males born with a bifid penis often underwent sex reassignment surgery, due to the difficulty of penile reconstruction. They were raised as girls, and often had reconstructive surgery to make them...
- bifid cipherBifid cipherIn classical cryptography, the bifid cipher is a cipher which combines the Polybius square with transposition, and uses fractionation to achieve diffusion...
, a type of cipher in cryptography - a variation in the P waveP wave (electrocardiography)In electrocardiography, during normal atrial depolarization, the main electrical vector is directed from the SA node towards the AV node, and spreads from the right atrium to the left atrium...
, R waveQRS complexThe QRS complex is a name for the combination of three of the graphical deflections seen on a typical electrocardiogram . It is usually the central and most visually obvious part of the tracing. It corresponds to the depolarization of the right and left ventricles of the human heart...
, or T waveT waveIn 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 is referred to as the relative refractory period...
in an echocardiogram in which a wave which usually has a single peak instead has two separate peaks