Related by context. Frequent words. (Click for all words.) 60 eyepieces 54 photochromic 53 neckband 53 retractor 52 nylon mesh 52 serrations 52 stiction 51 microelectrodes 51 collimator 51 interferometers 51 teardrop shape 51 scanning tunneling microscope 50 fluorescence microscope 50 curvatures 50 aligner 50 handgrips 50 snail shell 50 eyepiece 50 knurled 50 airfoils 50 lenses 50 aspheric 49 brake levers 49 laparoscopic instruments 49 bifocal 49 polarized glasses 49 detuning 49 microfluidic chip 49 inchworm 49 ergonomically friendly 48 phacoemulsification 48 nanorod 48 femoral component 48 thumbwheel 48 dye molecules 48 scleral 48 orthoses 48 rearmost 48 rimless 48 downtube 48 cryostat 48 optogenetics 48 DNA helix 48 calliper 48 electrodes implanted 48 LED headlamps 48 binocular 48 radially 48 polarized sunglasses 48 electrode array 48 lamellar 48 pectoral fins 48 elasticated 47 nanomechanical 47 polarizing filter 47 oblong shaped 47 intraoperatively 47 ear cushions 47 interferometric 47 cusps 47 snug fitting 47 fleece lining 47 protuberances 47 photonic crystal 47 vascular grafts 47 binocular vision 47 scrollwheel 47 dispersive 47 curved surfaces 47 tetrahedron 47 microfabricated 47 outsoles 47 strakes 47 controllably 47 footpads 47 plagiocephaly 47 piezo electric 47 hollow shaft 47 Hinged 47 repositionable 46 endotracheal tube 46 microlenses 46 hinged lid 46 phalanges 46 polarized lenses 46 barrette 46 aligners 46 calipers 46 handgrip 46 ultrasonic sensors 46 beveled edges 46 grippers 46 cylindrical 46 magnetic beads 46 compression stockings 46 splines 46 soliton 46 photonic crystals 46 transversely 46 Velcro straps 46 earcups