Related by context. Frequent words. (Click for all words.) 51 photonic crystal 50 visible wavelengths 49 fluoresces 48 diffracted 48 dentine 47 yellow ocher 47 undersurface 46 greenish tint 45 By Anupama Chandrasekaran 45 graphene sheet 45 hypoechoic 45 crystalline lens 45 engine cowling 45 silicon substrate 45 gate electrode 44 laser designator 44 predawn sky 44 silicon nanoparticles 44 mossy green 44 mosque minaret 44 red scaly patches 43 longerons 43 semiconductor nanocrystals 43 oxidizing agent 43 masonry walls 43 spalling 43 reddish hue 43 heavily cratered 43 leaded windows 43 bluish tint 43 delaminate 43 dermal layer 43 allied warplanes 43 Thick clouds 43 Payerne airfield 43 orangish 43 hexogen 43 roughening 42 delaminated 42 semiconducting materials 42 nanobubbles 42 obscuration 42 roof sheathing 42 submillimeter 42 Janaka Nanayakkara 42 pleura 42 falls durin 42 thin layer 42 thermite 42 exterior walls 42 reddish tinge 42 chromophores 41 unexploded ordnances 41 silicon oxide 41 ultra luxury superboat 41 plaster ceilings 41 steel superstructure 41 intertank 41 reinforcing rods 41 parapet walls 41 sniper nests 41 parallax barrier 41 camouflage netting 41 jarosite 41 reflective surfaces 41 rust stains 41 blackish 41 respiratory irritant 41 mottling 41 phosphorous shells 40 silicon atoms 40 skirting boards 40 Air Force SLAF 40 RAF Typhoon 40 glow brightly 40 rubber gasket 40 zinc oxide nanowires 40 pervasively altered 40 earthshine 40 Rocket propelled grenades 40 fluorocarbons 40 roof overhangs 40 abraded 40 starry sky 40 unaided eye 40 pock marks 40 3D Visible 40 colorless liquid 40 copper sulphide mineralization 40 white phosphorus munitions 40 Turkish acronym IHH 40 oblique angle 40 ultramarine 40 Cancellation fees 40 cirrus clouds 40 glass substrate 39 sunrays 39 fixative 39 Abolhassan Astaneh Asl 39 Robotic submarines 39 gigantic sparklers lit