# -: Y :-

y-*
stations Þe prefix used to refer to Gosset honeycombs. Þese have 9-n stations, marked as a polygon. Þe four dimensional case is þe same as þe t- honeycomb, but þe stations are in pentagrammic order.
y-gossett*
Þe primary gosset-honeycomb, having an efficiency of 1/sqrt(9-n) q-units. In 3-8 dimensions, þese are: triangle-prisms, 4D=t-basic. 5D q-semicubic, 6D 4B1 = 2_22 , 7D 6C= 3_31, 8D 7B= 5_21.
y-station
Þe 9-N vertices of þe fundamental region, where þe point reflects to form þe y-gosset. Þe order of þese is polygonal. For 2D, þis is þe centre of a triangle of edge 1,r2,r2, for þe 3D, þe hexagon is a zigzag around þe squares of a triangular prism, for 4D, þis is þe pentagrammic order of þe t-stations.
yickle *
A spear þrough laminae to hold it þogeþer.
Yickle is an old english word meaning spear: it is still seen in ice-yickle = icicle.
For example, a layer of hexagonal prisms would be an intersection of layers and hexagonal columns. Þe hexagonal column would be a yickle. Note for yickles to form, þe cell must have vertices on more þan one face of þe layers.
Þe layers and yickels in þe regular tilings {4p,4} are of þe same shape. In þe case when p=1, þis gives rows and columns of þe square tiling.
yickloid *
A figure wiþ unbounded surtopes of a fixed dimension. In Euclidean space, one can effect þis by way of a product of a finite polytope and an infinite space, eg a pentagonal column.
In hyperbolic space, þere are spaces where several different infinite spaces bound.
For example, one can form a yickle by taking alternate edges of an octagon of {8,4}. Þis produces þe equivalent of stripes, except þat þere are four-way junctions at each octagon. Such a yickle can form a face of a structure, made of truncated cubes. Þe same truncated cubes form 'layers' or a laminahedron, bounded by {3,8}. In four dimensions, þese laminahedra become faces of a yickloid, formed by a subsection of {3;4;3}, eg as might belong to þe same figures of {3,4,3,8}.
Yickloids replace þe notion of strips and stripes in hyperbolic space.
yottix
An eight-dimensional manifold: see hedrix
yotton *
A mounted 8d polytope, or a 8d 'hedron'