adventitious
121Origin of AIDS — False color scanning electron micrograph of HIV 1, in green, budding from cultured lymphocyte. AIDS is caused by the Human immunodeficiency virus (HIV), which originated in non human primates in Sub Saharan Africa and was transferred to humans… …
122Hellenistic biological sciences — R.J.Kankinson The five centuries that separate Aristotle’s death in 322 BC from Galen’s ascendancy in Rome in the latter part of the second century AD were fertile ones for the biological sciences, in particular medicine. Nor is the period solely …
123Circumstance — (Roget s Thesaurus) < N PARAG:Circumstance >N GRP: N 1 Sgm: N 1 circumstance circumstance situation phase position posture attitude place point Sgm: N 1 terms terms Sgm: N 1 regime regime Sg …
124adventure — [13] Adventure derives ultimately from a Latin verb meaning ‘arrive’. It originally meant ‘what comes or happens by chance’, hence ‘luck’, but it took a rather pessimistic downturn via ‘risk, danger’ to (in the 14th century) ‘hazardous… …
125extraneous — [adj1] unneeded; irrevelant accidental, additional, adventitious, beside the point, extra, foreign, immaterial, impertinent, inadmissible, inapplicable, inapposite, inappropriate, incidental, inessential, needless, nonessential, off the subject,… …
126adventure — [13] Adventure derives ultimately from a Latin verb meaning ‘arrive’. It originally meant ‘what comes or happens by chance’, hence ‘luck’, but it took a rather pessimistic downturn via ‘risk, danger’ to (in the 14th century) ‘hazardous… …
127ad|ven|ti|ti|a — «AD vehn TIHSH ee uh», noun. a membranous structure covering but not properly belonging to an organ, especially a blood vessel. ╂[< Latin adventīcia, neuter plural of adventīcius; see etym. under adventitious (Cf. ↑adventitious)] …
128Accidental — Ac ci*den tal, a. [Cf. F. accidentel, earlier accidental.] 1. Happening by chance, or unexpectedly; taking place not according to the usual course of things; casual; fortuitous; as, an accidental visit. [1913 Webster] 2. Nonessential; not… …
