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dor·mi·to·ry noun, plural -ries 1 : a room for sleeping; especially : a large room containing a number of beds

2 : a residence hall providing sleeping rooms

dor·mouse noun : any of numerous Old World rodents that resemble small squirrels

dor·sal adjective : of, relating to, or located near or on the surface of the body that in humans is the back but in most other animals is the upper surface

— dor·sal·ly adverb

do·ry noun, plural dories : a flat-bottomed boat with high flaring sides and a sharp bow

DOS abbreviation disk operating system

1dose noun [ORIGIN: ME, fr. MF, fr. LL dosis, fr. Gk, lit., act of giving, fr. didonai to give]

1 : a measured quantity (as of medicine) to be taken or administered at one time

2 : the quantity of radiation administered or absorbed

— dos·age noun

2dose verb dosed; dos·ing 1 : to give in doses

2 : to give medicine to

do·sim·e·ter noun : a device for measuring doses of radiations (as X-rays)

— do·sim·e·try noun

dos·sier noun [ORIGIN: F, bundle of documents labeled on the back, dossier, fr. dos back, fr. OF, fr. L dorsum]

: a file containing detailed records on a particular person or subject

1dot noun 1 : a small spot : SPECK

2 : a small round mark

3 : a precise point esp. in time

Synonyms

blotch, dapple, fleck, mottle, patch, point, speck, spot—more at SPOT

2dot verb dot·ted; dot·ting 1 : to mark with a dot <~ an i>

2 : to cover with or as if with dots

— dot·ter noun

Synonyms

blotch, dapple, fleck, freckle, mottle, pepper, speck, spot, sprinkle, stipple—more at SPOT

DOT abbreviation Department of Transportation

dot·age noun : feebleness of mind esp. in old age : SENILITY

dot·ard noun : a person in dotage

dot–com noun : a company that markets its products or services usu. exclusively via a Web site

dote verb dot·ed; dot·ing 1 : to be feebleminded esp. from old age

2 : to be lavish or excessive in one's attention, affection, or fondness

Synonyms

usually dote on adore, canonize, deify, idolize, worship—more at IDOLIZE

dot matrix noun : a rectangular arrangement of dots from which alphanumeric characters can be formed (as by a computer printer)

Dou·ay Version noun : an English translation of the Vulgate used by Roman Catholics

1double adjective [ORIGIN: ME, fr. AF, fr. L duplus, fr. duo two + -plus multiplied by]

1 : TWOFOLD, DUAL

2 : consisting of two members or parts

3 : being twice as great or as many

4 : folded in two

5 : having more than one whorl of petals <~ roses>

Synonyms

binary, bipartite, dual, duplex, twin; also mated, paired

Antonyms

single

2double verb dou·bled; dou·bling 1 : to make, be, or become twice as great or as many

2 : to make a call in bridge that increases the trick values and penalties of (an opponent's bid)

3 : FOLD

4 : CLENCH

5 : to be or cause to be bent over

6 : to take the place of another

7 : to hit a double

8 : to turn sharply and suddenly; especially : to turn back on one's course

3double adverb 1 : DOUBLY

2 : two together

4double noun 1 : something twice another in size, strength, speed, quantity, or value

2 : a base hit that enables the batter to reach second base

3 : one that is the counterpart of another : DUPLICATE; especially : a person who closely resembles another

4 : UNDERSTUDY, SUBSTITUTE

5 : a sharp turn : REVERSAL

6 : FOLD

7 : a combined bet placed on two different contests

8 plural : a game between two pairs of players

9 : an act of doubling in a card game

Synonyms

carbon copy, counterpart, duplicate, duplication, facsimile, image, likeness, match, picture, replica, ringer, spit—more at IMAGE

double bond noun : a chemical bond in which two atoms in a molecule share two pairs of electrons

double cross noun : an act of betraying or cheating esp. an associate

— dou·ble–cross verb

Synonyms

betrayal, disloyalty, faithlessness, falseness, falsity, infidelity,