Secondary chord — In music, secondary chord or secondary function may refer to: secondary dominant secondary leading tone chord secondary supertonic chord secondary triad This disambiguation page lists articles associated with the same title. If an … Wikipedia
Secondary metabolite — Secondary metabolites are organic compounds that are not directly involved in the normal growth, development or reproduction of organisms. Unlike primary metabolites, absence of secondary metabolities results not in immediate death, but in long… … Wikipedia
Secondary surveillance radar — SSR antenna of Deutsche Flugsicherung at Neubrandenburg, in Mecklenburg/Western Pomerania Secondary surveillance radar (SSR)[1] is a radar system used in air traffic control (ATC), that not only detects an … Wikipedia
Secondary suite — is an urban planning term for an additional separate dwelling unit on a property that would normally accommodate only one dwelling unit. A secondary suite is considered secondary or accessory to the primary residence on the parcel. It normally… … Wikipedia
Secondary dominant — (also applied dominant) is a type of chord used in musical harmony. It refers to a dominant of a degree other than the tonic, with V7/V, the dominant of the dominant, being the most frequently encountered [Kostka, Stefan and Dorothy Payne (2003) … Wikipedia
Secondary structure prediction — is a set of techniques in bioinformatics that aim to predict the local secondary structures of proteins and RNA sequences based only on knowledge of their primary structure amino acid or nucleotide sequence, respectively. For proteins, a… … Wikipedia
Secondary electrons — are electrons generated as ionization products. They are called secondary because they are generated by other radiation (the primary radiation). This radiation can be in the form of ions, electrons, or photons with sufficiently high energy, i.e.… … Wikipedia
Secondary measure — In mathematics, the secondary measure associated with a measure of positive density ho when there is one, is a measure of positive density mu, turning the secondary polynomials associated with the orthogonal polynomials for ho into an orthogonal… … Wikipedia
Secondary development — A secondary development, in music, is a section that appears in certain musical movements written in sonata form. The secondary development resembles a development section in its musical texture, but is shorter and occurs as a kind of excursion… … Wikipedia
Secondary air injection — Theory and origins= Secondary air injection (commonly air injection, colloquially smog pump, trademark Air Injection Reactor) is an automobile emissions control strategy introduced in 1966, wherein fresh air is injected into the exhaust stream.… … Wikipedia
Secondary structure — In biochemistry and structural biology, secondary structure is the general three dimensional form of local segments of biopolymers such as proteins and nucleic acids (DNA/RNA). It does not, however, describe specific atomic positions in three… … Wikipedia
