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rondo
(Encyclopedia) rondorondorŏnˈdō, rŏndōˈ [key], instrumental musical form in which the opening section is repeated after each succeeding section containing contrasting thematic material. The complex…amphoterism
(Encyclopedia) amphoterismamphoterismămˌfətĕrˈĭzm [key], in chemistry, the property of certain substances of acting either as acids or as bases depending on the reaction in which they are involved.…gametophyte
(Encyclopedia) gametophytegametophytegəmēˈtəfītˌ [key], phase of plant life cycles in which the gametes, i.e., egg and sperm, are produced. The gametophyte is haploid, that is, each cell contains a…toccata
(Encyclopedia) toccatatoccatatəkäˈtə, tō– [key] [Ital.,=touched], type of musical composition. Early examples were written for various instruments, but the best-known form of toccata originated about…salt, chemical compound
(Encyclopedia) salt, chemical compound (other than water) formed by a chemical reaction between an acid and a base (see acids and bases). Salts are also prepared by methods other than…R
(Encyclopedia) R, 18th letter of the alphabet, corresponding to Greek rho. When in Latin alphabets the letters for p and r became similar in appearance, the rho form (P; which at first was used for…variation, in music
(Encyclopedia) variation, in music, a compositional device in which certain features of a musical unit, e.g., phase, are altered while others are retained in a subsequent statement of the unit.…amino group
(Encyclopedia) amino group, in chemistry, functional group that consists of a nitrogen atom attached by single bonds to hydrogen atoms, alkyl groups, aryl groups, or a combination of these three. An…Urijah
(Encyclopedia) UrijahUrijahy&oomacr;rīˈjə [key], in the Bible. 1 High priest under King Ahaz. An alternate form is Uriah. 2 Prophet killed by King Jehoiakim. 3 Ancestor of a priestly family. An…leishmaniasis
(Encyclopedia) leishmaniasisleishmaniasislēshˌmənīˈəsĭs [key], any of a group of tropical diseases caused by parasitic protozoans of the genus Leishmania. The parasites live in dogs, foxes, rodents,…Trending
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