from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Consisting of interconnected or interwoven parts; composite.
- adj. Composed of two or more units: a complex carbohydrate.
- adj. Involved or intricate, as in structure; complicated.
- adj. Grammar Consisting of at least one bound form. Used of a word.
- adj. Grammar Consisting of an independent clause and at least one other independent or dependent clause. Used of a sentence.
- n. A whole composed of interconnected or interwoven parts: a complex of cities and suburbs; the military-industrial complex.
- n. In psychology, a group of related, often repressed ideas and impulses that compel characteristic or habitual patterns of thought, feelings, and behavior. No longer in scientific use.
- n. An exaggerated or obsessive concern or fear.
- n. Medicine The combination of factors, symptoms, or signs of a disease or disorder that forms a syndrome.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Made up of multiple parts; intricate or detailed.
- adj. Not simple or straightforward.
- adj. Of a number, of the form a + bi, where a and b are real numbers and i is the square root of −1.
- adj. A curve, polygon or other figure that crosses or intersects itself.
- n. A problem.
- n. A collection of buildings with a common purpose, such as a university or military base.
- n. A psychologically based dislike or fear of a particular thing.
- n. A thunderstorm that forms when two storm fronts collide.
- n. A structure consisting of a central atom or molecule weakly connected to surrounding atoms or molecules.
- v. To form a complex with another substance
from the GNU version of the Collaborative International Dictionary of English
- adj. Composed of two or more parts; composite; not simple.
- adj. Involving many parts; complicated; intricate.
- n. Assemblage of related things; collection; complication.
from The Century Dictionary and Cyclopedia
- Composed of interconnected parts; formed by a combination of simple things or elements; including two or more connected particulars; composite; not simple: as, a complex being; complex ideas; a complex term.
- Involved; intricate; complicated; perplexing.
- In the theory of numbers, any expression in the form ai + bj +, etc., where a, b, etc., are integers, and i, j, etc., are peculiar units.
- n. Anything consisting in or formed by the union of interconnected parts; especially, an assemblage of particulars related as parts of a system.
- n. In geometry, a continuous, triply infinite system of infinite straight lines; the whole of any kind of forms in space fulfilling one condition: thus, all the lines that cut a given curve in space constitute a complex.
- To combine intricately; involve; mix up.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a conceptual whole made up of complicated and related parts
- n. a compound described in terms of the central atom to which other atoms are bound or coordinated
- n. a whole structure (as a building) made up of interconnected or related structures
- adj. complicated in structure; consisting of interconnected parts
- n. (psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior
Latin complexus, past participle of complectī, to entwine; see complect.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French complexe, from Latin complexus, past participle of complectī ("to entwine, encircle, compass, infold"), from com- ("together") and plectere ("to weave, braid"). See complect. (Wiktionary)