Alternans (lat., Bot.), abwechselnd, wenn Organe mit anderen ungleichnamigen Theilen so gestellt sind, daß sie in od. vor den Zwischenräumen derselben sich befinden; dagegen Alternus, wechselständig, abwechselnd, wenn einzelne Theile aus einer gemeinschaftlichen Achse in verschiedenen Höhen entspringen, so daß sie eine Spirallinie beschreiben.
Pierer's Lexicon. 1857–1865.
alternans — Alternating; often used substantively for alternation of the heart, either electrical or mechanical. Alternating; used as a noun in the sense of pulsus a.. [L.] auditory a. SYN: auscultatory a.. auscultatory a. alternation in the intensity of… … Medical dictionary
alternans — L. alterno, change. 1) Rhachis produced into setaceous lobes opposite all or some of the spikelets. Plagiochloa alternans, Tribolium alternans 2) panicle branches arising from alternate nodes. Andropogon alternans … Etymological dictionary of grasses
alternans — n. alternating; alternation (as in pulsus alternans in Medicine) … English contemporary dictionary
alternans — altẹrnans vgl. alternierend … Das Wörterbuch medizinischer Fachausdrücke
T wave alternans — (TWA) is a periodic beat to beat variation in the amplitude or shape of the T wave in an electrocardiogram (ECG or EKG). T wave of ECG TWA was first described in 1908. At that time, only large variations ( macroscopic TWA) could be detected.… … Wikipedia
Chamaedorea alternans — Chamaedorea alternans … Wikipedia Español
Grandisonia alternans — Grandisonia alternans … Wikipédia en Français
Grandisonia alternans — Grandisonia alternans Estado de conservación … Wikipedia Español
Omorgus alternans — Omorgus alternans, adult Scientific classification Kingdom … Wikipedia
Grandisonia alternans — Taxobox name = Grandisonia alternans status = LC | status system = IUCN3.1 regnum = Animalia phylum = Chordata classis = Amphibia ordo = Gymnophiona familia = Caeciliidae genus = Grandisonia species = G. alternans binomial = Grandisonia alternans … Wikipedia
