95 Hoi 



Histology. — The science which treats of the finer 

 structure of the body-tissues. (Gr. Jiistos, a 

 tissue, and logos, science.) 



Histolysis. — The process of histology. (Gr. hislo, 

 and lyo.) 



Hoary. — Grey, with the white prevailing ; greyish- 

 white, caused by very dense short hairs covering 

 the surface. (A.S. has, hoarse, -}- Dan. hces, 

 Du. heesch.) 



Hoary. — [See Incanus.] (A.S.) 



Holometabolous. — The term given to insects which 

 undergo a complete metamorphosis. (Gr. kolas, 

 whole, and metabole, change.) 



Holopneustic. — The term given to the open or 

 normal type of tracheal system. This type is 

 distinguished by the presence and function of 

 stigmata. (Gr. holos, whole, and pneuma, air.) 



Holoptic. — Whole-eyed ; perfect eyed ; in the case 

 of the eye of colour, it is holoptic when it is in a 

 perfect state, ^.e., having one pupil surrounded 

 by one ring of colour, and an Atmosphere. (Gr. 

 holos, whole, and optiJcos, pertaining to the eye.) 



Holosericeous. — Covered with thick set shining, 

 short decumbent hairs, resembling satin in 

 sheen. (This kind of pubescence has usually 

 been denominated sericeous {sericea), but it 

 certainly does not resemble silk, and is different 

 from the sericeous splendour.) (Gr. holos, and 

 L. sericeus, silken.) 



