Concave Concave function Concave polygon Convex and Concave Concave cake Log-concave Logarithmically concave function Logarithmically concave measure Concave-eared torrent frog Logarithmically concave sequence Curved mirror Schur-convex function MV Mironave Quasiconvex function Rhododendron davidsonianum Lens Convex function Convex set Proper convex function Hollow Earth Sinum concavum Meniscus (liquid) Hexahedron Fractional programming Ceiling Prékopa–Leindler inequality Concavification Li Xiuqin Boulenophrys parva Inflection point Schreger line Björk–Shiley valve Chatter mark Fillet (mechanics)…

) Ovolo Histamenon Equilateral pentagon Wing of ilium Canon FD 35mm f/2 Horizontal plate of palatine bone Fan triangulation Rectilinear polygon Trochlear notch Minimax theorem Spokeshave Center of curvature Equilateral polygon Ogee Saddle joint Cabriolet (furniture) Convex optimization Conasprella imitator Neithea Bathyfautor multispinosus Xenophora peroniana Neuromechanics of idiopathic scoliosis Protocycloceratidae Amphiscapha Curve orien

tation Knefastia waltonia Pomaderris subplicata Valdiviathyris quenstedti Ulna Rotating furnace Infratemporal crest Turnoceras Elko point Streptoceras Scaphium (vessel) Paracomitas protransenna Stationary point Peurawot Conus stimpsoni Oxbow complex Huigobio exilicauda Calliotropis calcarata Drillia concolor Doulingoceras Aphelaeceras Propebela rathbuni Abyssochrysos bicinctus Ivondrovia seyrigi Ivondrovia grangeri World Ninepin Bowling Association Heppia conchiloba Plainview point Quinnia sykesi Lafitte (automobile) Funa jeffreysii Orthothecida Sliprännor i Gantofta Epidendrum mancum Daphnella stiphra Beekmanoceras Geophilus admarinus Gregorian telescope Simardoceras Stomatella duplicata Pseudophilautus stellatus Elongated gyrob