biˈotic,a.[ad.L. biōtic-us, a.Gr.βιωτικός pertaining to life,f.βίος life.]†1.Of or pertaining to (common) life, secular. Obs.rare.1600J. MelvillDiary (1842) 331The quhilk to serve for all those biotik matters, I thought weil to be heir insert.2.Of animal life; vital. So biˈotical. Also, pertaining to, produced, or influenced by living organisms,esp.in their ecological relations.1847Carpenter in ToddCycl.Anat.&Phys.III. 151Organization and biotical functions arise from the natural operations of forces inherent in elemental matter.1868MartinKeil'sMin.Proph. I. 408The idea that there is a biotic rapport between man and the larger domestic animals.1882Pop.Sc.Monthly XXII. 168The phenomena of irritability, assimilation, growth, and reproduction, which we may comprehensively designate as biotical.1907F. E. ClementsPlantPhysiol.&Ecol.i. 5Cases of abnormal response are due to biotic factors, particularly parasitic fungi and insects.1923A. G. TansleyPract.PlantEcol.iv. 48Man is constantly stopping or modifying the development... Where he has introduced a more or less permanent modifying factor or set of factors, we have biotic (anthropogenic) climaxes.1949NewBiol.VI. 54British grasslands represent neither a climatic nor an edaphic climax, but are a biotic climax. They are maintained as grassland per se under the influence exerted upon them by the biota,i.e.by living organisms, in particular by man and his domestic animals.