| abfarad
|
a capacitance unit equal to one billion farads |
- |
| absurd
|
a situation in which life seems irrational and meaningless |
the absurd |
| acarid
|
very small free-living arachnid that is parasitic on animals or plants; related to ticks |
- |
| accord
|
harmony of people's opinions or actions or characters |
agreement |
| accord
|
concurrence of opinion |
conformity,
accordance |
| accord
|
a written agreement between two states or sovereigns |
pact,
treaty |
| accord
|
sympathetic compatibility |
- |
| accused
|
a defendant in a criminal proceeding |
- |
| acetanilid
|
a solid odourless chemical of leaf or flake-like appearance; used in rubber accelerator, dye, and camphor synthesis; metabolised to paracetamol (acetaminophen) |
phenylacetamide,
acetanilide |
| acid
|
any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt |
- |
| acid
|
street name for lysergic acid diethylamide |
Zen,
dose,
dot,
pane,
Elvis,
window pane,
superman,
back breaker,
battery-acid,
Lucy in the sky with diamonds,
loony toons |
| acridid
|
grasshopper with short antennae |
short-horned grasshopper |
| actinoid
|
any of a series of radioactive elements with atomic numbers 89 through 103 |
actinide,
actinon |
| actinopod
|
protozoa having stiff rodlike radiating pseudopods |
- |
| ad
|
a public promotion of some product or service |
advertising,
advert,
advertisement,
advertizement,
advertizing |
| addend
|
a number that is added to another number (the augend) |
- |
| addlehead
|
a person with confused ideas; incapable of serious thought |
loon,
addle-head,
birdbrain |
| adelgid
|
any of various insects that feed and form galls on conifers |
- |
| adenoid
|
a collection of lymphatic tissue in the throat behind the uvula (on the posterior wall and roof of the nasopharynx) |
pharyngeal tonsil,
third tonsil,
tonsilla adenoidea,
tonsilla pharyngealis,
Luschka's tonsil |
| adulthood
|
the period of time in your life after your physical growth has stopped and you are fully developed |
maturity |
| adulthood
|
the state (and responsibilities) of a person who has attained maturity |
- |
| afterworld
|
the place where you are after you die |
- |
| agamid
|
a lizard of the family Agamidae |
agamid lizard |
| aged
|
people who are old collectively |
elderly |
| agueweed
|
gentian of eastern North America having clusters of bristly blue flowers |
Gentiana quinquefolia,
Gentianella quinquefolia,
stiff gentian,
ague weed,
five-flowered gentian |
| agueweed
|
perennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine |
Eupatorium perfoliatum,
boneset,
thoroughwort |
| aid
|
a person or thing that is a resource that helps make something easier or possible to do |
help,
assistance |
| aid
|
the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose |
help,
assist,
assistance |
| aid
|
gift of money or other material help to support a person or cause |
assistance,
economic aid,
economic assistance,
financial aid,
financial assistance |
| aid
|
the work of providing treatment for or attending to someone or something |
care,
attention,
tending |
| airfield
|
a place where planes take off and land |
field,
flying field,
landing field |
| airhead
|
a flighty scatterbrained simpleton |
- |
| airhead
|
a bridgehead seized by airborne troops |
- |
| airspeed
|
the speed of an aircraft relative to the air in which it is flying |
- |
| albuminoid
|
a simple protein found in horny and cartilaginous tissues and in the lens of the eye |
scleroprotein |
| alidad
|
surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments |
alidade |
| alidad
|
surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles |
alidade |
| alkaloid
|
natural bases containing nitrogen found in plants |
- |
| alkyd
|
a durable synthetic resin widely used in adhesives and paints |
alkyd resin |
| allgood
|
European plant naturalized in North America; often collected from the wild as a potherb |
wild spinach,
good-king-henry,
Chenopodium bonus-henricus,
fat hen |
| almond
|
small bushy deciduous tree native to Asia and North Africa having pretty pink blossoms and highly prized edible nuts enclosed in a hard green hull; cultivated in southern Australia and California |
Prunus amygdalus,
Prunus dulcis,
sweet almond,
Amygdalus communis |
| almond
|
oval-shaped edible seed of the almond tree |
- |
| ambystomid
|
small to moderate-sized terrestrial or semiaquatic New World salamander |
ambystomid salamander |
| ammonoid
|
one of the coiled chambered fossil shells of extinct mollusks |
ammonite |
| ampersand
|
a punctuation mark (&) used to represent conjunction (and) |
- |
| amphidiploid
|
(genetics) an organism or cell having a diploid set of chromosomes from each parent |
- |
| amphipod
|
a kind of malacostracan crustacean |
- |
| amygdaloid
|
volcanic rock in which rounded cavities formed by expanding gas have subsequently become filled with mineral deposits |
- |
| amyloid
|
a non-nitrogenous food substance consisting chiefly of starch; any substance resembling starch |
- |
| amyloid
|
(pathology) a waxy translucent complex protein resembling starch that results from degeneration of tissue |
- |
| analysand
|
a person undergoing psychoanalysis |
- |
| anapsid
|
primitive reptile having no opening in the temporal region of the skull; all extinct except turtles |
anapsid reptile |
| anaspid
|
extinct small freshwater jawless fish usually having a heterocercal tail and an armored head; of the Silurian and Devonian |
- |
| andrenid
|
a bee that is a member of the genus Andrena |
mining bee,
andrena |
| android
|
an automaton that resembles a human being |
humanoid,
mechanical man |
| android
|
An operating system from Google for mobile devices |
- |
| aneroid
|
a barometer that measures pressure without using fluids |
aneroid barometer |
| aniseed
|
liquorice-flavored seeds, used medicinally and in cooking and liquors |
anise,
anise seed |
| annelid
|
worms with cylindrical bodies segmented both internally and externally |
segmented worm,
annelid worm |
| antacid
|
an agent that counteracts or neutralizes acidity (especially in the stomach) |
gastric antacid,
alkaliser,
alkalizer,
antiacid |
| antbird
|
any of various dull-colored South American birds that feeding on ants some following army ant swarms |
ant bird |
| antherozoid
|
a motile male gamete of a plant such as an alga or fern or gymnosperm |
spermatozoid |
| anthropoid
|
person who resembles a nonhuman primate |
ape |
| anthropoid
|
any member of the suborder Anthropoidea including monkeys and apes and hominids |
- |
| antiacid
|
an agent that counteracts or neutralizes acidity (especially in the stomach) |
gastric antacid,
alkaliser,
alkalizer,
antacid |
| aoudad
|
wild sheep of northern Africa |
maned sheep,
Ammotragus lervia,
arui,
audad,
Barbary sheep |
| apartheid
|
a social policy or racial segregation involving political and economic and legal discrimination against people who are not Whites; the former official policy in South Africa |
- |
| aphid
|
any of various small plant-sucking insects |
- |
| applewood
|
wood of any of various apple trees of the genus Malus |
- |
| arachnid
|
air-breathing arthropods characterized by simple eyes and four pairs of legs |
arachnoid |
| arachnoid
|
the middle of the 3 meninges |
arachnoid membrane |
| arachnoid
|
air-breathing arthropods characterized by simple eyes and four pairs of legs |
arachnid |
| archiannelid
|
small primitive marine worm lacking external segmentation and resembling polychaete larvae |
- |
| arcsecond
|
a 60th part of a minute of arc |
second |
| arctiid
|
stout-bodied broad-winged moth with conspicuously striped or spotted wings; larvae are hairy caterpillars |
arctiid moth |
| ard
|
a simple light plough without a mouldboard. |
scratch plough,
ard plough |
| argasid
|
tick lacking a dorsal shield and having mouth parts on the under side of the head |
soft tick |
| armband
|
worn around arm as identification or to indicate mourning |
- |
| armband
|
a band worn around the upper arm |
- |
| armguard
|
a protective covering for the wrist or arm that is used in archery and fencing and other sports |
bracer |
| aroid
|
any plant of the family Araceae; have small flowers massed on a spadix surrounded by a large spathe |
arum |
| arrowhead
|
the pointed head or striking tip of an arrow |
- |
| arthropod
|
invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin |
- |
| arytaenoid
|
either of two small cartilages at the back of the larynx to which the vocal folds are attached |
arytenoid,
arytenoid cartilage |
| arytenoid
|
either of two small cartilages at the back of the larynx to which the vocal folds are attached |
arytaenoid,
arytenoid cartilage |
| asclepiad
|
any plant of the family Asclepiadaceae |
- |
| asteroid
|
any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter) |
- |
| athodyd
|
a simple type of jet engine; must be launched at high speed |
ramjet,
ramjet engine,
atherodyde,
flying drainpipe |
| attosecond
|
one quintillionth (10^-18) of a second; one thousandth of a femtosecond |
- |
| audad
|
wild sheep of northern Africa |
maned sheep,
Ammotragus lervia,
aoudad,
arui,
Barbary sheep |
| augend
|
a number to which another number (the addend) is added |
- |
| autacoid
|
any physiologically active internal secretion especially one of uncertain classification |
autocoid |
| autocoid
|
any physiologically active internal secretion especially one of uncertain classification |
autacoid |
| award
|
a grant made by a law court |
awarding |
| award
|
a tangible symbol signifying approval or distinction |
honor,
honour,
accolade,
laurels |
| award
|
something given for victory or superiority in a contest or competition or for winning a lottery |
prize |
| axseed
|
European herb resembling vetch; naturalized in the eastern United States; having umbels of pink-and-white flowers and sharp-angled pods |
Coronilla varia,
crown vetch |
| babyhood
|
the early stage of growth or development |
infancy,
early childhood |
| babyhood
|
the earliest state of immaturity |
infancy |
| bachelorhood
|
the time of a man's life prior to marriage |
- |
| bachelorhood
|
the state of being an unmarried man |
- |
| backband
|
a broad band that passes over the back of a horse and supports the shafts of a vehicle |
- |
| backbend
|
an acrobatic feat in which the trunk is bent backward from a standing position until the hands touch the floor |
- |
| backboard
|
a raised vertical board with basket attached; used to play basketball |
basketball backboard |
| backboard
|
a board used to support the back of someone or something |
- |
| backfield
|
the offensive football players who line up behind the linemen |
- |
| background
|
a person's social heritage: previous experience or training |
- |
| background
|
the part of a scene (or picture) that lies behind objects in the foreground |
ground |
| background
|
information that is essential to understanding a situation or problem |
background knowledge |
| background
|
extraneous signals that can be confused with the phenomenon to be observed or measured |
background signal |
| background
|
relatively unimportant or inconspicuous accompanying situation |
- |
| background
|
the state of the environment in which a situation exists |
setting,
scope |
| background
|
(computer science) the area of the screen in graphical user interfaces against which icons and windows appear |
desktop,
screen background |
| background
|
scenery hung at back of stage |
backcloth,
backdrop |
| backhand
|
a return made with the back of the hand facing the direction of the stroke |
backhand shot,
backhand stroke |
| backsword
|
a stick used instead of a sword for fencing |
singlestick,
fencing stick |
| backsword
|
a sword with only one cutting edge |
- |
| backyard
|
the grounds in back of a house |
- |
| bacteroid
|
a rodlike bacterium (especially any of the rod-shaped or branched bacteria in the root nodules of nitrogen-fixing plants) |
- |
| bad
|
that which is below standard or expectations as of ethics or decency |
badness |
| baffled
|
people who are frustrated and perplexed |
- |
| baldhead
|
a person whose head is bald or shaved |
skin,
baldpate,
skinhead,
baldy |
| ballad
|
a narrative song with a recurrent refrain |
lay |
| ballad
|
a narrative poem of popular origin |
lay |
| band
|
an unofficial association of people or groups |
lot,
set,
circle |
| band
|
instrumentalists not including string players |
- |
| band
|
a stripe or stripes of contrasting color |
banding,
stria,
striation |
| band
|
an adornment consisting of a strip of a contrasting color or material |
stripe,
banding |
| band
|
a group of musicians playing popular music for dancing |
dance band,
dance orchestra |
| band
|
a range of frequencies between two limits |
- |
| band
|
a thin flat strip of flexible material that is worn around the body or one of the limbs (especially to decorate the body) |
- |
| band
|
a cord-like tissue connecting two larger parts of an anatomical structure |
isthmus |
| band
|
jewelry consisting of a circlet of precious metal (often set with jewels) worn on the finger |
ring |
| band
|
a driving belt in machinery |
- |
| band
|
a thin flat strip or loop of flexible material that goes around or over something else, typically to hold it together or as a decoration |
- |
| band
|
a strip of material attached to the leg of a bird to identify it (as in studies of bird migration) |
ring |
| band
|
a restraint put around something to hold it together |
- |
| bandstand
|
a platform where a (brass) band can play in the open air |
stand,
outdoor stage |
| bard
|
a lyric poet |
- |
| bard
|
an ornamental caparison for a horse |
- |
| barmaid
|
a female bartender |
- |
| barnyard
|
a yard adjoining a barn |
- |
| baseboard
|
a molding covering the joint formed by a wall and the floor |
mopboard,
skirting board |
| basswood
|
soft light-colored wood of any of various linden trees; used in making crates and boxes and in carving and millwork |
linden |
| basswood
|
any of various deciduous trees of the genus Tilia with heart-shaped leaves and drooping cymose clusters of yellowish often fragrant flowers; several yield valuable timber |
lime,
lime tree,
linden,
linden tree |