Noun

(en noun)

A knot, knob, protuberance or swelling.

(astronomy) The point where the orbit of a planet, as viewed from the Sun, intersects the ecliptic. The ascending and descending nodes refer respectively to the points where the planet moves from S to N and N to S. The respective symbols are .

(botany) A stem node.

(computer networking) A computer or other device attached to a network.

(engineering) The point at which the lines of a funicular machine meet from different angular directions; -- called also knot.

(geometry) The point at which a curve crosses itself, being a double point of the curve. See Crunode, and Acnode.

(graph theory) A vertex or a leaf in a graph of a network, or other element in a data structure.

(medicine) A hard concretion or incrustation which forms upon bones attacked with rheumatism, gout, or syphilis; sometimes also, a swelling in the neighborhood of a joint.

(physics) A point along a standing wave where the wave has minimal amplitude.

(rare) The knot, intrigue, or plot of a piece.

(technical) A hole in the gnomon of a sundial, through which passes the ray of light which marks the hour of the day, the parallels of the Sun's declination, his place in the ecliptic, etc.

The word of interest in a KWIC, surrounded by left and right cotexts.

Noun

(en noun)

(senseid)A mechanical device intended to make a task easier.

Equipment used in a profession, e.g., tools of the trade.

* {{quote-magazine, date=2012-03, author=

, volume=100, issue=2, page=106, magazine=(American Scientist) , title= Pixels or Perish , passage=Drawings and pictures are more than mere ornaments in scientific discourse. Blackboard sketches, geological maps, diagrams of molecular structure, astronomical photographs, MRI images, the many varieties of statistical charts and graphs: These pictorial devices are indispensable tools for presenting evidence, for explaining a theory, for telling a story.}}

Something to perform an operation; an instrument; a means.

* {{quote-magazine, year=2013, month=July-August, author= Catherine Clabby

, magazine=(American Scientist), title= Focus on Everything , passage=Not long ago, it was difficult to produce photographs of tiny creatures with every part in focus.

(computing) A piece of software used to develop software or hardware, or to perform low-level operations.

A person or group which is used or controlled, usually unwittingly, by another person or group.

(slang) Penis.

(by extension, slang, pejorative) An obnoxious or uptight person.