Related by context. Frequent words. (Click for all words.) 65 rectangular 64 hexagons 63 cylindrical 62 hexagon 62 octagonal 62 concave 61 lattice 59 spherical 57 honeycomb 57 curved 56 conical 55 oblong 55 oval shaped 54 convex 54 pyramidal 54 ridged 54 evenly spaced 53 semicircular 53 trapezoidal 52 wedge shaped 52 concentric 52 helical 51 concentric rings 51 waveguides 51 rectangle 51 rectangles 50 scalloped 50 curvilinear 50 cube shaped 50 geometric shapes 50 geometrical 50 beveled 50 fluted 49 polished stainless steel 48 protrusions 48 donut shaped 48 geometries 48 columnar 48 elongated 48 irregularly shaped 48 polygonal 48 triangular shaped 48 double helix 48 indentations 47 translucent 47 contoured 47 machined 47 resonator 47 geometric 47 triangles 47 diameter 47 angular 47 geometric forms 47 pyramid shaped 47 calcite 47 cone shaped 47 crystals 47 planar 47 helix 47 diameters 46 cantilever 46 armature 46 dowels 46 sculptured 46 dome shaped 46 crystalline 46 anodized aluminum 46 ellipse 46 atoms 46 geodesic dome 46 triangular 46 cube 46 honeycombed 46 perspex 45 geometry 45 interlocking 45 triangle shaped 45 capillary 45 concentric circles 45 electrically conductive 45 laser etched 45 squarish 45 monolayer 45 spacers 45 carbon atoms 45 filaments 45 flanges 45 Plexiglas 45 trapezoid 45 elliptical 45 horseshoe shaped 44 shaped 44 semiconducting 44 inlaid 44 latticework 44 paneled 44 #mm diameter [001] 44 spindle 44 curvature 44 resonators 44 tubular