urchin
81disk-urchin — ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun : a flattened sea urchin (as a sand dollar or a keyhole urchin) …
82Cake urchin — Cake Cake (k[=a]k), n. [OE. cake, kaak; akin to Dan. kage, Sw. & Icel. kaka, D. koek, G.kuchen, OHG. chuocho.] [1913 Webster] 1. A small mass of dough baked; especially, a thin loaf from unleavened dough; as, an oatmeal cake; johnnycake. [1913… …
83Keyhole urchin — Keyhole Key hole , n. 1. A hole or apertupe in a door or lock, for receiving a key. [1913 Webster] 2. (a) (Carp.) A hole or excavation in beams intended to be joined together, to receive the key which fastens them. (b) (Mach.) a mortise for a key …
84Sea urchin — Sea ur chin (Zo[ o]l.) Any one of numerous species of echinoderms of the order {Echinoidea}. Note: When living they are covered with movable spines which are often long and sharp. [1913 Webster] …
85HMS Urchin (R99) — was an U class destroyer of the British Royal Navy that saw service during World War II. She was later converted into a Type 15 fast anti submarine frigate, with the new pennant number F196 …
86heart urchin — an echinoderm of the order Spatangoida, having an elongate, somewhat heart shaped outer covering. [1835 45] * * * ▪ echinoderm any echinoid marine invertebrate of the order Spatangoidea (phylum Echinodermata), in which the body is usually oval… …
87cake urchin — ▪ species of echinoderm any of the echinoid marine invertebrates of the order Clypeastroida (phylum Echinodermata), in which the body is flattened. The surface is covered with short spines (often furlike) and inconspicuous pedicellariae… …
88nano-urchin — noun a dense cluster of nanotubes having a form resembling a sea urchin, especially one made from vanadium oxides …
89sea urchin granuloma — a type of foreign body granuloma in the skin around the spine of a sea urchin …
90sea urchin — sea .urchin n a small round sea animal with a hard shell covered in sharp points …
