One of the four regions of the Cartesian plane bounded by the x-axis and y-axis.
One fourth of a circle or disc; a sector with an angle of 90°.
A measuring device with a graduated arc of 90° used in locating an altitude.
One of the four categories of team wins and losses, as categorized by strength of schedule.
One of the four sections made by dividing an area with two perpendicular lines.
A cross-section perpendicular the longitudinal axis of an aircraft in flight.
The symbol §, denoting a section of a document.
An informal taxonomic rank below the order ranks and above the family ranks.
A piece of residential land; a plot.
Synonym of square mile, a unit of land area, especially in the contexts of Canadan surveys and (historical) American land grants.
A sequence of rock layers.
A thin slice of material prepared as a specimen for research.
A class in a school; a group of students in a regularly scheduled meeting with a teacher in a certain school year or semester or school quarter year.
A right inverse.
A group of instruments in an orchestra.
An act or instance of cutting.
A cutting; a part cut out from the rest of something.
A cross-section (image that shows an object as if cut along a plane).
An incision or the act of making an incision.
A taxonomic rank below the genus (and subgenus if present), but above the species.
A group of 10-15 soldiers led by a non-commissioned officer and forming part of a platoon.
A part of a document, especially a major part; often notated with §.
A part, piece, subdivision of anything.
To reduce to the degree of thinness required for study with the microscope.
To perform a cesarean section on (someone).
To commit (a person, to a hospital, with or without their consent), as for mental health reasons. So called after various sections of legal acts regarding mental health.
To cut, divide or separate into pieces.