DIG 



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DIL 



arly : diffusion, n., dif-fuzli'-un, 

 in chem. , the property of becom- 

 ing uniformly mixed. 



digastric, a., dl-gast'-rik (Gr. dis, 

 twice ; gaster, the belly), having 

 a double belly applied to a 

 muscle of the lower jaw. 



digestion, n., di-jest'-yun (L. di- 

 gestio, the dissolving of food, di- 

 gestionis, of the dissolving of 

 food), the changing of the food 

 in the stomach into a substance 

 called chyme, preparatory to its 

 being fitted for circulation and 

 nourishment. 



digit, n., didf-tt (L. digitus, a 

 finger), a finger or toe : digital, 

 a., didf-it'dl, pert, to or re- 

 sembling a finger: digitate, a., 

 didf-tt-dt (L. digitdtus, having 

 fingers), branched like fingers ; 

 in bot., having a compound leaf 

 composed of several leaflets at- 

 tached to one point; digitate- 

 pinnate, applied to a digitate 

 leaf with pinnate leaflets. 



Digitalis, n., dtdj'-tt-al'-fc (L. 

 digitalis, of or belonging to the 

 finger from digitus, a finger, in 

 reference to the flower having 

 some resemblance to a finger), a 

 genus of plants, Ord. Scrophul- 

 ariacese, the most of whose 

 species are showy flowers : Digit- 

 alis purpurea, per-pur^e-d (L. 

 purpureus, purple-coloured from 

 purpura, a purple colour), fox- 

 glove, the most important medic- 

 inal plant of the Order, the seeds 

 and leaves of which are employed 

 in the form of powder, tincture, 

 and infusion : digitalin, n., dzdf- 

 U-dl f 'in, a crystalline principle 

 which contains the active proper- 

 ties of digitalis : Digitalis levig- 

 ata, lev'ig-dt'-d (L. levigdtus, 

 softened, macerated well) ; D. 

 grandiflora, grdnd'i-Jldr'>d (L. 

 grandis, high, grand ; jtos, a 

 flower, floris, of a flower); D. 

 lutea, lootfe-d (L. luteus, yellow, 

 of the colour of the plant lutum) ; 

 D. tomentosa, tdm'Zn-tdz'-d (L. 



tomentosus, downy from tomen- 

 turn, a stuffing for cushions, a flock 

 of wool), are other species which 

 have similar properties : digitali- 

 form, a., didf-it-atf-i-form (L. 



forma, shape), having a shape 

 like the corolla of digitalis. 



Digitigrada, n., didj^it-i-grdd'-a 

 (L. digitus, a finger ; gradior, I 

 walk), a subdivision of the Car- 

 nivora : digitigrade, a., didj'U- 

 i-grdd, walking upon the tips of 

 the toes, and not upon the soles 

 of the feet, as the cat, the weasel, 

 and the lion. 



digitipartite, a., didf-it-i-part'-it 

 (L. digitus, a finger; partUus, 

 divided in allusion to the five 

 fingers of the hand), in bot., ap- 

 plied to a leaf with five divisions 

 extending to near the base ; also 

 called ' quinquepartite. ' 



digynous, a., didf-m-us (Gr. dis, 

 twice; gune, a woman), having 

 two styles or pistils. 



dilamination, n. , di-ldrn'm-d'shtin 

 (L. dis, asunder ; lamina, a 

 blade), in bot., the separation of 

 a layer from the inner side of a 

 petal, either presenting a peculiar 

 form, or resembling the part from 

 which it is derived; also called 

 * deduplication ' and ' chorisis. ' 



dilatation, n., dll'-at-af-shun (L. 

 dilatdtus, enlarged, amplified 

 from dis, asunder ; Idtus, wide), 

 a spreading or extending in all 

 directions: dilatator, n., dtl'-tit- 

 at'-or, a muscle that dilates or 

 expands a part : dilatator naris, 

 nar'-is (L. naris, the nose, of the 

 nose), one of two muscles which, 

 expand the nose, or widen tha 

 nostrils. 



dill, n. , dil (AS. dile, anise ; Swed. 

 dill, Prov. Dan. dull, still, quiet), 

 the seeds of an aromatic plant, 

 the Anethum graveolens, belong- 

 ing to the Hemlock family, whose 

 distilled oil or prepared water is 

 used as a soothing medicine in 

 maladies accompanied with flatul- 

 ence. 



