from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Twofold; double.
- adj. Having two apartments, divisions, or floors.
- adj. Relating to or being a single assembly of machinery having two identical units that are capable of operating simultaneously or independently.
- adj. Electronics Of or relating to a communications mode, as in a telephone system, that provides simultaneous transmission and reception in both directions.
- n. A house divided into two living units or residences, usually having separate entrances.
- n. Something, such as an apartment, that is duplex.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. double, made up of two parts
- adj. two direction (electronical signaling)
- n. house made up of two dwelling units
- n. a cancellation combining a numerical cancellation with a second mark showing time, date, and place of posting.
- n. throwing motion where two balls are thrown with one hand at the same time.
- v. To make duplex.
- v. To make into a duplex.
- v. To make a series of duplex throws.
from the GNU version of the Collaborative International Dictionary of English
- adj. Double; twofold.
- adj. organized so that data may be transmitted in two opposite directions over the same channel; -- of communications channels, such as data transfer lines between computers.
- transitive v. To arrange, as a telegraph line, so that two messages may be transmitted simultaneously; to equip with a duplex telegraphic outfit.
- n. something which is duplex; -- used mostly in reference to a living unit, such as an apartment, in a building having two similar living units.
- n. a double-stranded region in a nucleic acid molecule. See deoxyribonucleic acid.
from The Century Dictionary and Cyclopedia
- Double; twofold.
- n. A doubling or duplicating.
- In telegraphy, to arrange (a wire) so that two messages may be transmitted along it at the same time.
- To transmit telegraphic messages by the duplex system.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a house with two units sharing a common wall
- v. change into a duplex
- adj. (used technically of a device or process) having two parts
- n. an apartment having rooms on two floors that are connected by a staircase
- adj. allowing communication in opposite directions simultaneously
Latin.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin duplex ("double, two-fold"), from duo ("two") + plico ("fold together"), from Ancient Greek πλέκω (pleko, "twist, braid"). (Wiktionary)