MYR 



275 



NAP 



the Myrsine family, an Order of 

 plants : Myrsine, n. , mers'm-e, a 

 genus of plants : Myrsine bif- 

 aria, bif-ar'-i-a (L. bifarius, 

 divided into two parts from bis, 

 twice ; fdri, to speak), a species 

 whose berries are said to possess 

 cathartic properties. 



Myrtacese, n. plu., mer'ld'se-e (Gr. 

 murtos, L. myrtus, a myrtle tree), 

 the Myrtle family, an Order of 

 plants, which comprise the 

 myrtle, the pomegranate, the 

 rose-apple, the clove, and many 

 plants producing beautiful 

 flowers : Myrtese, n. plu. , mer' 

 te-e, a Sub-order of plants : 

 Myrtus, n. , mer'tus, a genus : 

 Myrtus pimenta, pim-Znt'-a (Sp. 

 pimienta, pepper) r also called 

 * Eugenia pimenta/ Pimento, 

 Allspice, or Jamaica pepper, the 

 berried fruit of a tree which is 

 a native of the W. Indies and 

 Mexico ; it contains an acrid 

 volatile oil, and is sometimes 

 employed as a stimulant and 

 carminative : M. communis, 

 Icom-mim'-is (L. cdmmunis, 

 common), the common myrtle 

 whose berries are used as food. 



myrtiform, a., mer'tifdrm (L. 

 myrtus, myrtle ; forma, shape), 

 having the shape of myrtle leaves 

 or berries : myrtiformfossa,/&s-sa 

 (L. fossa, a ditch), in anat., a 

 depression on the facial surface 

 just above the incisor teeth, also 

 called 'incisive fossa.' 



myxoma, n . , miles dm' a, myxomata, 

 n. plu., miks'om'dt-d (Gr. muxa, 

 mucus, slimy substance), a tumour 

 composed of mucous tissue : myx- 

 oamoebae, n. plu., miks'd-dm-e'be 

 (Gr. amoibos, changing), swarm 

 spores of myxomycetes. 



myxomycetes, n., miles'- tim-i- set'- 'ez 

 (Gr. muxa, a slimy substance ; 

 mukes, a fungus), a group of 

 Thallophytes without chlorophyll, 

 so named as the members of the 

 group form creeping masses of 

 naked protoplasm, which send up 



spore-bearing sporangia, whose 

 spores are formed along with, and 

 in the interstices of, thread-like 

 filaments of varying character 

 (the capillitium). 



myxospores, n., miks'o-sporz (Gr. 

 muxa, mucus ;. spora, a seed), 

 the spores formed in the sporangia 

 of the myxomycetes : myxo- 

 sporous,. a., miks-ds'por-us, 

 having myxospores, or pert, to 

 them. 



nacre, n. , ndk'r (F. nacre, mother- 

 of-pearl), the beautiful, iridescent 

 substance forming the inner 

 covering of the shell of the pearl 

 mussel or oyster, also called 

 'mother-of-pearl': nacreous, a., 

 ndk' re-Ms, having a pearly lustre; 

 of the texture of mother-of- 

 pearl. 



nsevns, n., nev'&s, naevi, n. plu., 

 nev'l (L. ncevus, a mole on the 

 body), congenital flat, or slightly 

 elevated- structures, occurring 

 principally on the skin of the 

 lace, head, or neck, and composed 

 of a plexus of the mere superficial 

 vessels of the skin, which ceases to 

 grow from the moment of birth 

 more serious vascular tumours 

 are sometimes included under 

 this head ; a congenital spot or 

 mark varying in its appearance : 

 nsBVOse, a., nev-oz', freckled ; 

 having congenital marks: nsevoid, 

 a., nev'oyd (Gr. eidos, resem- 

 blance), resembling a nsevus. 



NaiadaceaB, n. plu., nd'yad-d'-sZ-e, 

 also called Potamese (Gr. 

 NaiadZs, the Naiads or nymphs 

 of the rivers and streams), the 

 Naias or Pondweed family, an 

 Order of plants living in fresh 

 and salt water, one of the species 

 of which is the lace-plant or 

 lattice-plant of Madagascar, 

 whose rhizome is used for food, 

 and called the ' water yam ' : 

 Naias, n., naf-yas, a genus of the 

 Order. 



napiform, a., nap' if firm (L. 



