Definition of TORUS. 1. : a large molding of convex profile commonly occurring as the lowest molding in the base of a column.2. : the thickening of a membrane closing a wood-cell pit (as of gymnosperm tracheids) having the secondary cell wall arched over the pit cavity.3.efinition of TORUS. 1. : a large molding of convex profile commonly occurring as the lowest molding in the base of a column. 2. : the thickening of a membrane closing a wood-cell pit (as of gymnosperm tracheids) having the secondary cell wall arched over the pit cavity. 3.
Artranq/iStock/Getty Images. Outdoor dogs generally shed most in April and May and have a second shedding season before winter, in August, September or October, depending on the climate. Some dogs blow their coat in a fairly rapid, massive shedding and others shed more gradually.
There are times when a hedgehog will shed large numbers of quills and replace shed ones with new ones. This process is called quilling. The quilling process is different than the replacement of spines that are lost individually.