Acorn-shell (n.) One of the sessile cirripeds |
Air drill () A drill driven by the elastic pressure of condensed air |
Arbor (n.) A kind of latticework formed of, or covered with, vines, branches of trees, or other plants, for shade |
Arbor (n.) A tree, as distinguished from a shrub. |
Arbor (n.) An axle or spindle of a wheel or opinion. |
Arbor (n.) A mandrel in lathe turning. |
Arbor Dianae () A precipitation of silver, in a beautiful arborescent form. |
Arbor vine () A species of bindweed. |
Arbor vitae () An evergreen tree of the cypress tribe, genus Thuja. The American species is the T. occidentalis. |
Arbor vitae () The treelike disposition of the gray and white nerve tissues in the cerebellum, as seen in a vertical section. |
Argus shell () A species of shell (Cypraea argus), beautifully variegated with spots resembling those in a peacock's tail. |
Ark shell () A marine bivalve shell belonging to the genus Arca and its allies. |
Boat shell () A marine gastropod of the genus Crepidula. The species are numerous. It is so named from its form and interior deck. |
Boat shell () A marine univalve shell of the genus Cymba. |
Bubble shell () A marine univalve shell of the genus Bulla and allied genera, belonging to the Tectibranchiata. |
Core (n.) A body of individuals |
Core (n.) A miner's underground working time or shift. |
Core (n.) A Hebrew dry measure |
Core (n.) The heart or inner part of a thing, as of a column, wall, rope, of a boil, etc. |
Core (n.) The center or inner part, as of an open space |
Core (n.) The most important part of a thing |
Core (n.) The prtion of a mold which shapes the interior of a cylinder, tube, or other hollow casting, or which makes a hole in or through a casting |
Core (n.) A disorder of sheep occasioned by worms in the liver. |
Core (n.) The bony process which forms the central axis of the horns in many animals. |
Core (v. t.) To take out the core or inward parts of |
Core (v. t.) To form by means of a core, as a hole in a casting. |
Counterbore (n.) A flat-bottomed cylindrical enlargement of the mouth of a hole, usually of slight depth, as for receiving a cylindrical screw head. |
Counterbore (n.) A kind of pin drill with the cutting edge or edges normal to the axis |
Counterbore (v. t.) To form a counterbore in, by boring, turning, or drilling |
Drill (v. t.) To pierce or bore with a drill, or a with a drill |
Drill (v. t.) To train in the military art |
Drill (v. i.) To practice an exercise or exercises |
Drill (n.) An instrument with an edged or pointed end used for making holes in hard substances |
Drill (n.) The act or exercise of training soldiers in the military art, as in the manual of arms, in the execution of evolutions, and the like |
Drill (n.) Any exercise, physical or mental, enforced with regularity and by constant repetition |
Drill (n.) A marine gastropod, of several species, which kills oysters and other bivalves by drilling holes through the shell. The most destructive kind is Urosalpinx cinerea. |
Drill (v. t.) To cause to flow in drills or rills or by trickling |
Drill (v. t.) To sow, as seeds, by dribbling them along a furrow or in a row, like a trickling rill of water. |
Drill (v. t.) To entice |
Drill (v. t.) To cause to slip or waste away by degrees. |
Drill (v. i.) To trickle. |
Drill (v. i.) To sow in drills. |
Drill (n.) A small trickling stream |
Drill (n.) An implement for making holes for sowing seed, and sometimes so formed as to contain seeds and drop them into the hole made. |
Drill (n.) A light furrow or channel made to put seed into sowing. |
Drill (n.) A row of seed sown in a furrow. |
Drill (n.) A large African baboon (Cynocephalus leucophaeus). |
Drill (n.) Same as Drilling. |
Drill press () A machine for drilling holes in metal, the drill being pressed to the metal by the action of a screw. |
Ear-shell (n.) A flattened marine univalve shell of the genus Haliotis |
shell game thimblerig | a swindling sleight-of-hand game, victim guesses which of three things a pellet is under |
drill | (military) the training of soldiers to march (as in ceremonial parades) or to perform the manual of arms |
exercise practice drill practice session recitation | systematic training by multiple repetitions, practice makes perfect |
fire drill | an exercise intended to train people in duties and escape procedures to be followed in case of fire |
military drill | training in marching and the use of weapons |
close-order drill | (military) military drill of troops in standard marching (shoulder-to-shoulder) |
conchology shell collecting | the collection and study of mollusc shells |
budgerigar budgereegah budgerygah budgie grass parakeet lovebird shell parakeet Melopsittacus undulatus | small Australian parakeet usually light green with black and yellow markings in the wild but bred in many colors |
carapace shell cuticle shield a | hard outer covering or case of certain organisms such as arthropods and turtles |
shell | the hard largely calcareous covering of a mollusc or a brachiopod |
scallop shell | a shell of a scallop |
oyster shell | a shell of an oyster |
tooth shell tusk shell | any of various seashore mollusks having a tapering tubular shell open at each end and a foot pointed like a spade for burrowing |
abalone ear-shell | any of various large edible marine gastropods of the genus Haliotis having an ear-shaped shell with pearly interior |
scorpion shell | any of numerous tropical marine snails that as adults have the outer lip of the aperture produced into a series of long curved spines |
moon shell moonshell | marine gastropods having smooth rounded shells that form short spires |
bubble shell | marine gastropod mollusk having a very small thin shell |
chiton coat-of-mail shell sea cradle polyplacophore | primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates |
soft-shell clam steamer steamer clam long-neck clam Mya arenaria | an edible clam with thin oval-shaped shell found in coastal regions of the United States and Europe |
quahog quahaug hard-shell clam hard clam round clam Venus mercenaria Mercenaria mercenaria | an edible American clam, the heavy shells were used as money by some American Indians |
ark shell | marine bivalve mollusk having a heavy toothed shell with a deep boat-like inner surface |
hard-shell crab | edible crab that has not recently molted and so has a hard shell |
soft-shell crab soft-shelled crab | edible crab that has recently molted and not yet formed its new shell |
brachiopod lamp shell lampshell | marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food, found worldwide |
drill Mandrillus leucophaeus | similar to the mandrill but smaller and less brightly colored |
arbor arbour bower pergola | a framework that supports climbing plants, the arbor provided a shady resting place in the park |
artillery shell | a shell fired by artillery |
blank dummy blank shell | a cartridge containing an explosive charge but no bullet |
bore bore-hole drill hole | a hole or passage made by a drill, usually made for exploratory purposes |
bore bit borer rock drill stone drill | a drill for penetrating rock |
breast drill | a portable drill with a plate that is pressed against the chest to force the drill point into the work |
core | a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil |
core | the chamber of a nuclear reactor containing the fissile material where the reaction takes place |
core magnetic core | (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data, now superseded by semiconductor memories, each core has three wires passing through it, providing the means to select and detect the contents of each bit |
core bit | a hollow drilling bit that is the cutting part of a core drill, allows core samples to be taken |
core drill | a drill that removes a cylindrical core from the drill hole |
counterbore countersink countersink bit | a bit for enlarging the upper part of a hole |
dentist's drill burr drill | a high speed drill that dentists use to cut into teeth |
drill | a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows) |
electric drill | a rotating power drill powered by an electric motor |
drilling bit drill bit | a bit used in drilling for oil |
drill press | a machine tool with a separate, upright stand, an electric drill is pressed into the work automatically or with a hand lever |
drill rig drilling rig oilrig oil rig | rig used in drilling for oil or gas |
drill site | workplace that is the site of a drill hole |
gas shell | (military) bomb consisting of an explosive projectile filled with a toxic gas that is released when the bomb explodes |
grape arbor grape arbour | an arbor where grapes are grown |
hand drill handheld drill | a small portable drill held and operated by hand |
magnetic core memory core memory | (computer science) a computer memory consisting of an array of magnetic cores, now superseded by semiconductor memories |
mess jacket monkey jacket shell jacket | waist-length jacket tapering to a point at the back, worn by officers in the mess for formal dinners |
plate scale shell | a metal sheathing of uniform thickness (such as the shield attached to an artillery piece to protect the gunners) |