AMM 



16 



AMO 



ammi copticum, am'-mikopt'tk-tim 

 (Gr. ammos, sand, in reference 

 to the soil best adapted for its 

 growth), a plant of the Ord. 

 Umbelliferse ; the Ajowan, or 

 Omam, a condiment of India. 



ammonia, n., dm-mon'-l-d (Am- 

 mon, the Libyan Jupiter ; after 

 the place where first found, and 

 where his temple stood), a trans- 

 parent, pungent gas ; the volatile 

 alkali ; spirits of hartshorn, a 

 substance used in medicine and 

 the arts : ammoniac, a., dm -mon 

 i- ok, also ammoniacal, -i'-dk-dl, 

 and ammonic, a., dm-mMik, 

 pert, to or possessing the pro- 

 perties of ammonia; pungent: 

 ammonium, n., am-mori'-i-urn, 

 the supposed base of ammonia : 

 sal-ammoniac, n., the common 

 name for chloride of ammonium : 

 ammoniacum, n., amf-mdn-i'-ak- 

 um (because the tree was sup- 

 posed to grow chiefly at Ammon), 

 the pharmacopoeial name of a 

 gum resin from the north-east of 

 India, exuded from the 'Dorema 

 ammoniacum,' also called am- 

 moniac, or gum-ammoniac: am- 

 monio with the terminal o 

 which indicates the leading in- 

 fluencing power in a compound. 



Ammophila, n., am-mof-il-a (Gr. 

 ammos, sand; phileo, I love), a 

 genus of grasses which constitute 

 bent and marram of the British 

 shores, Ord. Graminese : ammoph- 

 ila arenaria, dr'-en-fir'-i-a (L. 

 arendrius, belonging to sand 

 from arena, sand), one of the 

 bents of the sea-shore, the roots 

 forming a network among the 

 sand: ammophilous, a., am-mof- 

 il-fts, loving sand. 



amnesia, n., dm-nezh't-d (Gr. a, 

 without ; mnesis, memory), an 

 affection of the brain in which 

 the memory is impaired ; want 

 of memory : amnesic, a. , dm- 

 nez'ik, caused by loss of memory. 



amnion, n., dm'm-dn (Gr. amnion, 

 a vessel for receiving the blood of 



animals in sacrifice), the internal 

 membrane of the ovum which 

 completely envelopes the embryo, 

 and contains the water surround- 

 ing the ' foetus in utero :' amnios, 

 n., dmf'Ui'Os, in bot., the fluid 

 or semi-fluid matter in the em- 

 bryo-sac : amniota, n. plu., dm'- 

 m-ot'd, the group of the vert- 

 ebrata in which the foetus is 

 furnished with an amnion, com- 

 prising reptiles, birds, and mam- 

 mals : amniotic, a., am'-ni-ot'-ik, 

 pert, to the amnion : amnitis, n., 

 am-nit'-is, inflammation of the 

 amnion. 



amceba, n., am-eh'-a (Gr. amoibos, 

 doing in turn, exchanging), in 

 zool., a species of rhizopod, so 

 called from the numerous changes 

 of form which it undergoes : 

 amoebiform, a., am-eh'-i-form (L. 



forma, shape), resembling an 

 amceba in shape : amoeboid, a., 

 am-eb f 'dyd (Gr. eidos, resem- 

 blance), amoebiform ; resembling 

 the movements of amoeba. 



amonmm, n., dm-om'-um (Gr. a, 

 without ; momos, a blemish, 

 having a supposed allusion to the 

 qualities of some of the species 

 as counterpoisons), a Sub-ord. of 

 plants, Ord. Zingiberacese, the 

 cardamoms of commerce, consti- 

 tuting the seed of several species ; 

 the Grains of Paradise are the 

 seeds of one of the species: am- 

 omeous, a., dm'dm'&'US, having 

 an arrangement of parts as in the 

 amoma : Amomum cardamom- 

 urn, kdrd'-dm-6m'iim (Gr. kard- 

 amomon, an aromatic . plant ; 

 kardamon, a kind of cress), sup- 

 plies the round cardamoms of 

 Java, Siam, and Sumatra : A. 

 aromaticum, dr'-dm-at'-ik-wri (L. 

 aromaticus, aromatic, fragrant), 

 the Bengal cardamom : A. max- 

 imum, maks'im-tim (L. maximus, 

 greatest), another Java species fur- 

 nishing a kind of cardamom : A. 

 melegueta, mel-fy'-u-et'-d, Grains 

 of Paradise, or Melegueta pepper. 



