change-over to a different classification scheme
81Sexual orientation — is believed to refer to an enduring pattern of emotional, romantic, and/or sexual attractions to men, women, or both sexes. According to the American Psychological Association it also refers to an individual’s sense of personal and social… …
82Carcinogenesis — For the scientific journal, see Carcinogenesis (journal). Cancers are caused by a series of mutations. Each mutation alters the behavior of the cell somewhat. Carcinogenesis or oncogenesis is literally the creation of cancer. It is a process by… …
83Passive margin — A passive margin is the transition between oceanic and continental crust which is not an active plate margin. It is constructed by sedimentation above an ancient rift, now marked by transitional crust. Continental rifting creates new ocean basins …
84Diaphoneme — In linguistics, a diaphoneme or diaphone is a phoneme viewed through its dialectal variants, called diaphonic variants or diaphonic allophones.[1] For example, the vowel that constitutes the English word eye /aɪ/ is pronounced d …
85History of science — History of science …
86Leukemia — For the journal, see Leukemia (journal). For animal diseases, see Leucosis. Leukemia Classification and external resources A Wright s stained bone marrow aspirate smear of patient with precursor B cell acute lymphoblastic leukemia …
87Fairy chess piece — Some fairy pieces Archbishop (knight + bishop compound) Chancellor (knight …
88Fold (geology) — For other uses, see Fold (disambiguation). Very tight folds. Formation near Moruya, New South Wales, Australia …
89diagnosis — /duy euhg noh sis/, n., pl. diagnoses / seez/. 1. Med. a. the process of determining by examination the nature and circumstances of a diseased condition. b. the decision reached from such an examination. Abbr.: Dx 2. Biol. scientific… …
90sailing — /say ling/, n. 1. the activity of a person or thing that sails. 2. the departure of a ship from port: The cruise line offers sailings every other day. 3. Navig. any of various methods for determining courses and distances by means of charts or… …
