PRO 



341 PRO 



from pro, before ; stasis, a set- 

 ting or standing), applied to a 

 pale, firm, glandular body, re- 

 sembling a horse - chestnut in 

 shape and size, which surrounds 

 the neck of the bladder and 

 commencement of the urethra : 

 prostatic, a., prd-stat'$k, of or 

 pert, to the prostate gland : 

 prostatitis, n., pros' tat-tt-is, the 

 inflammation of. 



protandrous, a., prdt-and'-rus(GY. 

 protos, first ; aner, a male, 

 andros, of a male), in bot. , having 

 stamens reaching maturity before 

 the pistil. 



Proteaces9, n. plu., pr^^'d'-se-e 

 (L. Proteus, a self-transforming 

 sea-god), the Protea family, an 

 Order of plants, so named from 

 their great diversity of appear- 

 ance: rrotea, n., prot^-a, a genus 

 of magnificent evergreen shrubs, 

 producing peculiar flowers : Prot- 

 ea mellifera, mel-Uf-er-d (L. 

 mel, honey, mellis, of honey ; 

 jfero, I produce), the sugar-bush, 

 a species so named from the 

 honey furnished by its flowers : 

 P. grandiflora, grand'-i-flor'-a (L. 

 grandis, great ; flos, a flower, 

 floris, of a flower), a species whose 

 bark, called "Wagenboom, is used 

 in diarrhoea at the Cape. 

 protenchyma, n., prot-gng'-kim-a 

 (Gr. protos, first ; engcheo, I pour 

 in ; cheuma, juice, tissue), in 

 bot., the fundamental tissue out 

 of which by differentiation other 

 tissues arise. 



prothallus, n., prd-thdl'lus, also 

 prothallium, n., pro-ihal'-ll-um 

 (Gr. pro, before ; thallos, a 

 sprout), in bot., the first results 

 of the germination of the spore 

 in the higher Cryptogams, as 

 ferns, horse-tails, etc! 

 prothorax, n., prd-thdr'aJcs (Gr. 

 pro, before ; thorax, the chest), 

 in zoo/., the anterior ring of the 

 thorax of insects. 



Protococcus, n.,prdt'o-kdk f ''us (Gr. 

 protos, first ; kokkos, a berry), a 



genus of Algae : Protococcus 

 nivalis, mv-dl'is (L. mvdlis, of 

 or belonging to snow from nix, 

 snow), and P. viridis, vir^id-is 

 (L. viridis, green), are species 

 which occur in red and green 

 snow. 



protogynous, a., proi-tidf-m-us, 

 also proterogynous, a., prot'er- 

 6df'ln-us (Gr. protos, first ; gune, 

 a woman), in bot., having the 

 pistil reaching maturity before 

 the stamens. 



protophyte, n., prot'o-fit (Gr. 

 protos, first ; phuton, a plant), a 

 production lowest in the scale 

 of the vegetable kingdom : prot- 

 ophyta, n. plu., proi-fif'-it-a, the 

 lowest division of plants. 



protoplasm, n., prot'6-plazm, also 

 protoplasma, n., prot'd-plaz'ma 

 (Gr. protos, first ; plasma, what 

 has been formed, a model), in 

 bot., deposits upon the inner 

 walls of the cells of cellular tissue, 

 from which the cell-nuclei are 

 formed ; the elementary basis of 

 organised tissues : protoplast, 

 n., prot'o-plast (Gr. plastos, 

 formed), the thing first formed ; 

 a first formed nucleated cell in an 

 organised body. 



protopodite, n., prdt-tip'8d-it (Gr. 

 protos, first ; pous, a foot, podes, 

 feet), in zool., the basal segment 

 of the typical limb of a Crust- 

 acean. 



protospores, n. , prot'o-sporz (Gr. 

 protos, first ; spora, a seed), in 

 bot., the spores of the first gen- 

 eration. 



protovertebraa, n. plu., prot'-d* 

 vert'-eb-re (Gr. protos, first ; and 

 vertebrce), the primitive vertebrae 

 of early foetal life, appearing 

 early as dark spots, soon forming 

 quadrangular laminae on each 

 side of the chorda dorsalis, 

 which, however, do not coincide 

 with the permanent vertebrae. 



protoxide, n., prot-oks'-id (Gr. 

 protos, first; and. oxide), mchem., 

 a compound containing one 



