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Tetrad Disease Tetralogy of Fallot: pulmonary stenosis, ventricular septal defect, right ventricular hypertrophy, overriding aorta: Tetralogy of Fallot Ménière's disease: vertigo, tinnitus, fluctuating low frequency hearing loss, aural fullness: Ménière's disease zoonotic tetrad: scrub typhus, chiggers, rodents and birds, scrub vegetation
This list may not reflect recent changes. 0–9. 3C syndrome; A. ... List of medical triads, tetrads, and pentads; Löfgren syndrome; M. Meigs's syndrome; Meltzer's ...
Inex and saros for tetrads between AD 1000 and 2500, showing the tetradia. In astronomy, a tetrad is a set of four total lunar eclipses within two consecutive years. [1] The frequency of tetrads varies by century with the frequency of total lunar eclipses. This repeating cycle is called a tetradia. See Eclipse cycle for more information.
This list may not reflect recent changes. L. List of medical triads, tetrads, and pentads; P. Pentalogy of Cantrell; R. Reynolds' pentad; T. Tetralogy of Fallot
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Tetrad (astronomy), four total lunar eclipses within two years; Tetrad (chromosomal formation) Tetrad (general relativity), or frame field Tetrad formalism, an approach to general relativity; Tetrad (geometry puzzle), a set of four simply connected disjoint planar regions in the plane; Tetrad (meiosis), the four cells produced by meiotic cell ...
The tetractys. The tetractys (Greek: τετρακτύς), or tetrad, [1] or the tetractys of the decad [2] is a triangular figure consisting of ten points arranged in four rows: one, two, three, and four points in each row, which is the geometrical representation of the fourth triangular number.
This lunar eclipse is the first of a tetrad, with four total lunar eclipses in series, the others being on October 18, 2032; April 14, 2033; and October 8, 2033.