169 Por 



Polex. — The last dorsal segment of the abdomen. 

 (Gr. polos.) 



Pollen-brushes. — The hairs situated on the 

 proximal or first joint of the tarsus of bees. 

 (L. very fine flour ; and F. hrosse, brush.) 



Pollex. — " An inch " ; the width of the thumb, 

 an obsolete measure for the determination of 

 the length of large insects. (L. the thumb.) 



PoUiniferous. — Formed for collecting the pollen 

 of plants ; the tarsi of many of the Hymeno- 

 ptera. (L. pollen, and jero, to bear.) 



Pollinose. — Having yellow dust, like the pollen of 

 flowers. (L. pollen, fine flour.) 



Politum. — Polished, shining. (L.politvs, polished). 

 See Nitidum. 



Poly. — Greek, many. 



Polygonal, Polygonous. — Having many angles. 

 (Gr. poll/, many, and gonia, an angle.) 



Polymorphous. — Having various and many forms. 

 (Gr. poll, and morpJie, shape.) 



Porcate. — -Having several elevated longitudinal 

 parallel ridges ; formed in ridges. (L. porca, 

 a ridge.) 



Porcate. — Possessing deep, broad sulcations. 

 (L. porca.) 



Pore. — A minute orifice in the membranous surface 

 by which fluids are exhaled or absorbed ; a 

 small interstice between the molecules or 

 particles of bodies. (Gr. poros, a passage.) 



