Definition of opening

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Opening (n.) A place which is open; a breach; an aperture; a gap; cleft, or hole..

Lern More About Opening

Pharynx :: Pharynx (n.) The part of the alimentary canal between the cavity of the mouth and the esophagus. It has one or two external openings through the nose in the higher vertebrates, and lateral branchial openings in fishes and some amphibias..
Lintel :: Lintel (n.) A horizontal member spanning an opening, and carrying the superincumbent weight by means of its strength in resisting crosswise fracture..
Vent :: Vent (n.) The anal opening of certain invertebrates and fishes; also, the external cloacal opening of reptiles, birds, amphibians, and many fishes..
Ostium :: Ostium (n.) An opening; a passage.
Alcove :: Alcove (n.) A recessed portion of a room, or a small room opening into a larger one; especially, a recess to contain a bed; a lateral recess in a library..
Indraught :: Indraught (n.) An opening from the sea into the land; an inlet.
Girder :: Girder (n.) A main beam; a stright, horizontal beam to span an opening or carry weight, such as ends of floor beams, etc.; hence, a framed or built-up member discharging the same office, technically called a compound girder. See Illusts. of Frame, and Doubleframed floor, under Double..
Hag :: Hag (n.) An eel-like marine marsipobranch (Myxine glutinosa), allied to the lamprey. It has a suctorial mouth, with labial appendages, and a single pair of gill openings. It is the type of the order Hyperotpeta. Called also hagfish, borer, slime eel, sucker, and sleepmarken..
Glut :: Glut (n.) An arched opening to the ashpit of a klin.
Phlebotomize :: Phlebotomize (v. t.) To let blood from by opening a vein; to bleed.
Gap :: Gap (n.) An opening in anything made by breaking or parting; as, a gap in a fence; an opening for a passage or entrance; an opening which implies a breach or defect; a vacant space or time; a hiatus; a mountain pass..
Fissure :: Fissure (n.) A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock..
Cholecystotomy :: Cholecystotomy (n.) The operation of making an opening in the gall bladder, as for the removal of a gallstone..
Sluice :: Sluice (v. t.) To wet copiously, as by opening a sluice; as, to sluice meadows..
Bevel :: Bevel (n.) An instrument consisting of two rules or arms, jointed together at one end, and opening to any angle, for adjusting the surfaces of work to the same or a given inclination; -- called also a bevel square..
Micropyle :: Micropyle (n.) An opening in the membranes surrounding the ovum, by which nutrition is assisted and the entrance of the spermatozoa permitted..
Oillet :: Oillet (n.) A small opening or loophole, sometimes circular, used in mediaeval fortifications..
Pylorus :: Pylorus (n.) The opening from the stomach into the intestine.
Diurnal :: Diurnal (a.) Opening during the day, and closing at night; -- said of flowers or leaves..
Hiatus :: Hiatus (n.) An opening; an aperture; a gap; a chasm; esp., a defect in a manuscript, where some part is lost or effaced; a space where something is wanting; a break..
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