82 



A GLOSSARY OF TERMS 



IMPENETRABILITY. That property 

 by which a body occupies any 

 space, to the exclusion of every 

 other body. 



IMPEN'NATE. fr. lat. tm, priv.; pen- 

 no, a wing. Wingless. 



IWPENNIS. fr. lat. penna, a wing. 

 Systematic name of those pen- 

 guins which have very short 

 wings. 



IMPERFECT. In botany; wanting the 

 stamen or pistil. 



IMPERFORATED. Not pierced with 

 a hole; wanting an umbilicus. 



IMPEHIA'LIS. Lat. Imperial, royal. 



IMPRE'SSA. Lat. Impressed, en- 

 graven, marked. 



iN-EauiLA'TERAL Applied to bi- 

 valves, when the anterior and 

 posterior sides make different an- 

 gles with the hinge. 



INJEQ,UIVA'LVIS. Lat. Inequivalve. 

 Having unequal valves; having 

 one valve more convex than the 

 other. 



IN ARTI'CULATE. In conchology ; in- 

 distinct, not properly formed. 



INCANDE'SCENCE. fr. lat. incandes- 

 cere, to grow very hot, to be in- 

 flamed. The condition of great 

 heat, showing a certain light, as if 

 the heated substance itself were 

 burning. Melted. 



INCANDE'SCENT. Greatly heated. 



INCARNATE. In botany; flesh-co- 

 loured. 



INCINERA'TION. fr. lat. incinero, to 

 reduce to ashes. The reducing 

 to ashes by burning. 



fNci'sA. Lat. Cut, carved, cut off. 



INCISED. Cut; separated by inci- 

 sions. 



INCISOR. fr. lat. incido, I cut. Ap- 

 plied to those teeth which occupy 

 the anterior or centre of the upper 

 and lower jaws, because they are 

 used for cutting the food. 



INCLINATION OF BEDS. Dip. (p. 185, 

 Book viii). 



INCLUDED. Wholly received or con- 

 tained in a cavity. 



INCLU'SA. fr. lat. include, I enclose. 



Name of a tribe of acephalous 

 rnollusks. 



INCOHE'RENT. fr. lat. in, not; am, 

 with ; h&reo, I adhere. Loose, 

 wanting cohesion. 



INCOMPLETE. Flowers destitute of 

 a calyx or corolla are termed in- 

 complete. 



INCOMPRESSIBI'LITT. That property 

 of substances, whether solid or 

 fluid, by which it resists being 

 pressed or squeezed into a small- 

 er bulk. 



INCRA'SSATED. Becoming thicker 

 by degrees. Larger toward the 

 end. 



INCRUSTA'TION. fr. lat. crusta, a 

 crust. A covering like a crust. 



INCRUS'TED. Anything covered by 

 a mineral substance is said to be 

 incrusted : crusted over. 



INCUBA'TION. fr. \at.incubatio. The 

 act of the female of oviparous 

 animals, in sitting and remaining 

 on her eggs for the purpose of 

 hatching them. 



INCU'MBENT. fr. lat. incumbo, to lie 

 upon. Applied to the cotyledons 

 of those cruciferous plants, which 

 are folded with their backs upon 

 the radicle. Lying against, 01 

 across. 



INCTJRV'ED. When a part is turned 

 inwards. 



INCURVE -RECURVED. Bending in 

 wards, and then backwards. 



INDEHI'SCENT. fr. lat. m, not; de- 

 hisco, I gape. Applied to those 

 fruits, in which the pericarp, when 

 arrived at maturity, continues per- 

 fectly closed. See DEHISCENT. 



INDENTED. Marked by depressions, 

 dots, cavities or lines: unequally 

 marked. 



INBEX. "> fr. lat. indicare, to point 



INDICA'TOR. j out, to indicate. The 

 fore-finger, the index-finger. 



INDI'GENOUS. Native to a country. 



IN'DICA. > ^ ^.^ 



IN DICUS. 



INDUME'NTUM. The plumage or 

 clothing of birds. 



