AGO ; 



anomaly of organization, consisting In 

 absence or imperfect development of the 

 parts. 



ACER, a Roman acre of land. 



AGERA'TUM, the generic name of the 

 bastard hemp agrimony. There are seven 

 species, natives of America. Class syn- 

 genesia, order polygamia eequalis. Xame, 

 a^ot-rov, from and yq(<*f > old > in refer- 

 ence to the length of time which the 

 flowers of some of the species preserve 

 their beauty. 



AGEU'STIA, from a, not, and yiuiuau, 

 to taste. A defect or lose of taste ; symp- 

 tomatic of many diseases. 



AGGER, Lat. from ad and gero, to heap. 

 A fortress, a tumulus. 



AGGEROSE, full of heaps. 



AGGLOMERATE, from agglomero, to roll 

 into a ball. Applied : 1. In botany, to the 

 stamina of plants when collected into 

 a globular form, as in Anotia triloba, and 

 to amentae when of a similar form, as in 



Firms sylrestris. 2. In anatomy, to 



glands in the same sense as aggregate. 



AGGLIJTINANT, from Lat. agglutino, to 

 glue together. 1. Any viscous substance 

 which unites other substances by causing 



an adhesion. 2. The adhesion of parts 



by the effusion of a coagulating medium. 



AGGLUTINATION, the action of anagglu- 

 tinant. In surgery, the natural process of 

 adhesion In wounds. 



AGGRAVATION, from ad and ffravit, 

 heavy. The addition of one degree of 

 guilt to another. Technically, an eccle- 

 siastical censure threatening excommuni- 

 cation after three admonitions used in 

 vain. Fronl aggravation, the next step 

 is re-aggravation, which is the last ex- 

 communication. 



AGGREGATE, the second family of Ace- 

 phala nuda. This family consists of 

 animals analogous to the Ascidit?, but 

 united together in a common mass, so 

 that they seem to communicate organi- 

 cally with each other, and in tliis respect 

 to connect the Mollnsca with the Zoo- 

 phytes. Hence the name of the family, 

 from aggrego, to flock together. The form 

 of the mass is sometimes that of a single 

 star, e. g. the botrylta ,- sometimes that of 

 many stars strung together, e. g. the pyro- 

 soma ; sometimes the mass is globular, 

 e. g. the polyclina. 



AGGREGATE, from Lat aggrfgo. toassera- 

 ble together, from yrex, a flock. In physics, 

 a whole or mass formed by the uniting 

 together of many parts of the name kind : 

 the chemical properties of the aggregate 

 do not differ from those of its pans. The 

 smallest parts into which an aggregate can 

 be divided without altering its chemical 

 properties are sometimes called integrant 



parts. 2. In botany, the term is applied 



to flowers composed of many small florets 



5 AGI 



having a common undivided receptacle, 

 the anthers being distinct and separate 

 the florets commonly standing on stalks, 

 and each having a partial calyx. Aggregate 

 flowers are, therefore, opposed to simple 

 fioioers. 3. In law, applied to a corpora- 

 tion, the existence of which is preserved 

 by accession of new members. 4. In 

 anatomy, applied to glands which are 

 clustered together. 



AGGREGATION. By attraction of aggre- 

 gation is meant the power which causes 

 homogeneous bodies to tend towards each 

 other, and to cohere when united. The 

 aggregate differs from a hwp, whose parts 

 do not cohere ; and from a mixture, which 

 consists of parts dissimilar in their nature. 

 The word is used of solid, liquid, and 

 gaseous bodies. 



AniLD, ( In old law toft*, a person of 

 AOILPB. t so little account that whoever 

 killed him was not liable to any fine for 

 so doing ! 



AGIO (Italian), the difference in value 

 between bank-s'.oek, or money, and cur- 

 rent coin, or cash. Also the rate of pre- 

 mium which is given when a claim that 

 can only be legally demanded in one kind 

 of money is paid in another. Thus, in 

 countries where the standard is silver, 

 the receiver will often pay agio for gold. 

 The agio is subject to variations. The 

 term is also sometimes used to denote 

 the premium on the discounting of a bill. 

 APIO OF ASSURANCE is the same with 

 what, in this country, is called policy ol 

 assurance. 



AOIST. In law, to take the cattle of 

 others to graze at a certain sum : used 

 originally for the feeding of cattle in the 

 king's forests. The word is probably 

 from FT. peter, from the old word gister, 

 to lodge for a short time. 

 AOISTAGE, \ In law, the taking of 

 AGISTMEXT, > other people's cattle to 

 AGIST&TION. . graze, especially in the 

 king's forests, ami also the profits thence 

 arising. These terms also denote a tax. 

 burden, or charges levied for repairing the 

 sea-banks hi different parts of England. 

 The agistment- tithe is a tithe paid to the 

 vicar for pasturage of barren cattle, usu- 

 ally 10 per cent, on the asristage-money 

 taken hy the agistor. . This tithe is abo- 

 lished in Ireland. 



AOISTOR, 1 An officer of. the king's 



AOISTATOA, > forest, who has the care of 



AGISTER. I the cattle agisted. andcol- 



lects the money for the same : hence called 



giit-taker, which is popularly rendered 



guest-taker. 



AGITATO (Ital. from Lat. agiM, in music, 

 denotes a broken style of performance, 

 adapted to awaken surprise. 



AGITATOR, that which agitates. In the 

 time of Cromwell, " there were certain 

 officers appointed by the army to watch 



