BIOMETRY 



207 



BIRD'S-NEST 



Biometry (bi-om'-et-re) [fiioq, life; fisrpov, a measure]. 

 Life-measurement; the estimation of the probable 

 duration of any given life-form — in the past or future. 



Biomorphotic {fno-tnor-fot'-ik) [3ioq, life ; fiop<puriKog, 

 fit for shaping]. In biology, having an active pupa. 



Biondi's Fluid. A staining-medium used in histo- 

 logic laboratories. It is a mixture of orange-G., 

 methyl-green, and acid fuchsin. See Stains, Table of. 



Bionergy {bi-on' -er-je) [3iog, life ; epyov, work]. Life- 

 force ; force exercised in the living organism. 



Bionomy (bi-on' -o-me) [(3*oc, life; vo/ioc, a law]. 

 Dynamic biology ; biodynamics ; the science of the 

 laws of life. 



Biontology (bi-on-tol' '-o-je) [Slog, life ; uv(bvT), being ; 

 '/.iyeiv, to speak]. In biology, the physiology of the 

 species or genus, embracing the transcendental or 

 strictly philosophic in physiology (J. Aitken Meigs.) 



Biophagous (bi-off'-ag-us) [3ioc, life ; tyayeiv, to eat] . 

 Feeding upon living organisms, or upon living tissue, 

 as insectivorous plants. 



Biophore {bi'-o-for) [3ioc, life; ykptiv, to bear]. One 

 of Weismann's hypothetic " bearers of vitality," cor- 

 responding to the " plasomes " of Wiesner and Briicke 

 and to the " pangenes " of de Vries, the smallest 

 units that exhibit the primary vital forces, the bearers 

 of the cell-qualities. 



Biophysiograpby ( y bi-o-fiz-e-og / -ra-fe) [3ioc, life ; Qvotc , 

 nature; ypaqEiv, to write]. Descriptive or structural 

 biology ; organography, as distinguished from bio- 

 physiology. 



Biophysiology [bi-o-fiz-e-ol' -o-je) [3io<;, life ; tyvcir, na- 

 ture; Adyoc, science]. That branch of biology that in- 

 cludes organogeny, morphology and general physi- 

 ology. 



Bioplasm (bi f -o-plazm) [/3toc, life ; ir/Aaua, form] . 

 Any living matter, but especially germinal or forming 

 matter ; matter possessing reproductive vitality. See 

 Protoplasm. 



Bioplasmic (bi-o-plaz' -mik) [3'ioc, life; ir?.aofia, form]. 

 Relating to or of the nature of bioplasm. 



Bioplasson {bi-o-plas' -on) [Bioc, life ; T?.aoouv, form- 

 ing]. Elsberg's term for living matter. A synonym 

 of protoplasm or bioplasm. 



Bioplast (bi' -o-plasi) [3'ioc , life ; 7r?.a<rroc, formed]. A 

 mass or cell of bioplasm which is a unit of living 

 matter. 



Bioplastic (bi-o-plas' -tik) [Bioq, life ; tt?m(tt6<;, formed]. 

 Relating to or of the nature of a bioplast or of bio- 

 plasm. 



Biopsic (bi-op'-sik) [3ioc, life ; bipic, vision]. Pertain- 

 ing to biopsy. 



Biopsy {bi'-op-se) [3'ioq, life ; dipic, vision] . Observation 

 of the living subject ; opposed to necropsy. 



Biorbital (bi-orb'-it-al) [bi, two ; orbita, a path]. Re- 

 lating to both orbits. 



Bioscope (bF-o-skop) [3'to£, life; ckotze'iv, to view]. An 

 instrument used in bioscopy. 



Bioscopy {bi-os f -ko-pe) [Slog, life ; okotteiv, to examine]. 

 Examination of the body to ascertain if life be extinct. 

 B., Electro-, examination by the aid of the electric 

 current. The muscular reaction is lost to faradic 

 stimulation in about two hours after death in the 

 tongue ; after three or four hours in the extremities ; 

 after five or six hours in the trunk. The reaction to 

 galvanism persists somewhat longer. 



Biosis (bi-o'-sis) [3loq, life]. Life ; vitality. 



Biostatics {bi-o-stat' -iks) [3ioc, life ; aramcSt;, causing 

 to stand]. Static biology ; the science of the deter- 

 minate parts of biology, including anatomy, and the 

 physics of the living body. 



Biot's Respiration. See Respiration. 



Biotaxis {(>i-o-taks / -is) [3ioq, life ; rafm, arrangement]. 



I. The selective and arranging function or activity of 

 life, or of living cells. 2. Systematic biology; the 

 classification of living organisms. 



Biotaxy (bi'-o-taks-e). See Biotaxis. 



Biothalmy {bi' ' -o-thal-me) [ t 3io6d?.uiog, vigorous ; fiioq, 

 life ; Od/J^iv, to be vigorous]. The art of living long 

 and well. 



Biotic {bi-ot f -ik) [Blutlkqc]. Pertaining to life or to the 

 laws of animal and vegetable progress and evolution. 



Biotome (bi'-o-tom) [3ioq, life; rofiij, a cutting]. A 

 term applied by Cobbold to a stage in the development 

 of certain entozoa. 



Biotomy (bi-of '-o-me) [/3/oc, life; TEfiveiv, to cut]. Vi- 

 visection. 



Biparasitic (bi-par-as-it' '-ik) [bi, two; irapdairog, a 

 parasite]. Parasitic upon a parasite. 



Biparietal {bi-par-i' '-et-al) [bi, two; parietes, a wall]. 

 Relating to both parietal bones. B. Diameter, the 

 distance from one parietal eminence of the cranium to 

 the other. 



Biparous [bip' -ar-us) [bi, double ; parere, to bring 

 forth]. Producing two at a birth. 



Bipartite (bi-par'-tit) [bi, two; pars, a part]. In 

 biology, composed of two parts or divisions. 



Biped (bi f -ped) [bi, two; pes, a foot]. With or having 

 two feet. 



Biperforate {bi-per* '- fo-rat) [bi, two ; perforattis, bored 

 through]. Having two perforations ; as a biperforate 

 hymen. 



Bipetalous {bi-pef '-al-us) [bi, two; Trera'/.ov, a petal]. 

 In biology, having two petals. 



Biphosphate (bi-fos'-fdt) [bi, two; phosphorus]. In 

 chemistry, an acid phosphate. 



Biphosphid {bi- fas' -fid) [bi, two; phosphorus"]. In 

 chemistry, a phosphid containing twice as much phos- 

 phorus as the lower member of the phosphid series. 



Biphosphite (bi-fos'-jit) [bi, two; phosphorus]. In 

 chemistry, an acid phosphite. 



Bipinnate [bi-pin'-at) [bi, two; pinna/us, feathered]. 

 In biology, doubly pinnate, as a leaf. 



Bipolar (bi-po'-lar) [bi, two; polus, a pole]. Having 

 two poles. B. Nerve-cells, nerve-cells that have 

 two prolongations of the cell-matter. They are 

 found chiefly in the ganglia of the gray matter of the 

 brain. 



Bipubiotomy {bi-pu-be-ot'-o-me) [bi, double; pubes, 

 pubes; refiveiv, to cut]. An obsolete operation (in the 

 place of the Cesarean section) in which the pubic 

 bones were both divided. See Galbiati' 's and Fara- 

 beufs Operations. 



Birch (berch) [AS., birce]. Any tree of the genus 

 Betula. Birch tar, or the tarry oil of B. alba, is 

 useful in certain skin diseases. The bark of B. lenta, 

 the American black birch, yields a fragrant volatile 

 oil, identical with that of Gaul.'heria procumbens, for 

 which it is often substituted. B. Camphor. Same 

 as B. Resin. B. Resin. See Betulin. Oleum betulae 

 volatile, volatile oil of betula, oil of sweet birch. 



Bird-lime {berd f -lim). A viscous vegetable substance 

 used in Japan as a local dressing for wounds. 



Bird's Formula. The last two figures of the specific 

 gravity of urine nearly represent the number of grains 

 of solids to the ounce contained in the urine. The 

 same two figures multiplied by 2 (Trapp's Factor) 

 give the parts per iooo. Haeser's Factor is 2.33. 

 B. Operations. See Operations, Table of. 



Bird's-nest Bodies, or Cells. The cells of certain 

 forms of carcinoma, distinguished by the concentric 

 arrangement of their cell-walls. See also Cancer 

 Nests. B. Edible, the nest of certain species of 

 swift, used by the Chinese as food. It consists of 

 marine algae, Gelidium, cemented by the salivary 



