| arc
|
(noun) electrical conduction through a gas in an applied electric field |
Synonyms:
discharge,
electric arc,
electric discharge,
spark |
|---|
| (noun) a continuous portion of a circle |
- |
| (noun) something curved in shape |
Synonyms:
bow |
| arcade
|
(noun) a covered passageway with shops and stalls on either side |
- |
|---|
| (noun) a structure composed of a series of arches supported by columns |
Synonyms:
colonnade |
| arcanum
|
(noun) information known only to a special group |
Synonyms:
secret |
|---|
| arccos
|
(noun) the inverse function of the cosine; the angle that has a cosine equal to a given number |
Synonyms:
inverse cosine,
arc cosine,
arccosine |
|---|
| arccosecant
|
(noun) the angle that has a cosecant equal to a given number |
Synonyms:
inverse cosecant,
arc cosecant |
|---|
| arccosine
|
(noun) the inverse function of the cosine; the angle that has a cosine equal to a given number |
Synonyms:
inverse cosine,
arc cosine,
arccos |
|---|
| arccotangent
|
(noun) the inverse function of the cotangent; the angle that has a cotangent equal to a given number |
Synonyms:
inverse cotangent,
arc cotangent |
|---|
| arcdegree
|
(noun) a measure for arcs and angles |
Synonyms:
degree |
|---|
| arcella
|
(noun) an amoeba-like protozoan with a chitinous shell resembling an umbrella |
- |
|---|
| arch
|
(noun) a curved shape in the vertical plane that spans an opening |
- |
|---|
| (noun) a curved bony structure supporting or enclosing organs (especially the inner sides of the feet) |
- |
| (noun) a passageway under a curved masonry construction |
Synonyms:
archway |
| (noun) (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it |
- |
| archaebacteria
|
(noun) considered ancient life forms that evolved separately from bacteria and blue-green algae |
Synonyms:
archaebacterium,
archaeobacteria,
archeobacteria |
|---|
| archaebacterium
|
(noun) considered ancient life forms that evolved separately from bacteria and blue-green algae |
Synonyms:
archaebacteria,
archaeobacteria,
archeobacteria |
|---|
| archaeobacteria
|
(noun) considered ancient life forms that evolved separately from bacteria and blue-green algae |
Synonyms:
archaebacteria,
archaebacterium,
archeobacteria |
|---|
| archaeologist
|
(noun) an anthropologist who studies prehistoric people and their culture |
Synonyms:
archeologist |
|---|
| archaeology
|
(noun) the branch of anthropology that studies prehistoric people and their cultures |
Synonyms:
archeology |
|---|
| archaeopteryx
|
(noun) extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds |
Synonyms:
Archaeopteryx lithographica,
archeopteryx |
|---|
| archaeornis
|
(noun) extinct primitive toothed bird with a long feathered tail and three free clawed digits on each wing |
- |
|---|
| archaicism
|
(noun) the use of an archaic expression |
Synonyms:
archaism |
|---|
| archaism
|
(noun) the use of an archaic expression |
Synonyms:
archaicism |
|---|
| archaist
|
(noun) a person who archaizes |
- |
|---|
| (noun) an expert or collector of antiquities |
Synonyms:
antiquarian,
antiquary |
| archangel
|
(noun) an angel ranked above the highest rank in the celestial hierarchy |
- |
|---|
| (noun) a biennial cultivated herb; its stems are candied and eaten and its roots are used medicinally |
Synonyms:
garden angelica,
Angelica Archangelica |
| archbishop
|
(noun) a bishop of highest rank |
- |
|---|
| archbishopric
|
(noun) the territorial jurisdiction of an archbishop |
- |
|---|
| archdeacon
|
(noun) (Anglican Church) an ecclesiastical dignitary usually ranking just below a bishop |
- |
|---|
| archdeaconry
|
(noun) the territorial jurisdiction of an archdeacon |
- |
|---|
| archdiocese
|
(noun) the diocese of an archbishop |
- |
|---|
| archduchess
|
(noun) a wife or widow of an archduke or a princess of the former ruling house of Austria |
- |
|---|
| archduchy
|
(noun) the domain controlled by an archduke or archduchess |
- |
|---|
| archduke
|
(noun) a sovereign prince of the former ruling house of Austria |
- |
|---|
| archegonium
|
(noun) a female sex organ occurring in mosses, ferns, and most gymnosperms |
- |
|---|
| archenteron
|
(noun) central cavity of the gastrula; becomes the intestinal or digestive cavity |
- |
|---|
| archeobacteria
|
(noun) considered ancient life forms that evolved separately from bacteria and blue-green algae |
Synonyms:
archaebacteria,
archaebacterium,
archaeobacteria |
|---|
| archeologist
|
(noun) an anthropologist who studies prehistoric people and their culture |
Synonyms:
archaeologist |
|---|
| archeology
|
(noun) the branch of anthropology that studies prehistoric people and their cultures |
Synonyms:
archaeology |
|---|
| archeopteryx
|
(noun) extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds |
Synonyms:
Archaeopteryx lithographica,
archaeopteryx |
|---|
| archer
|
(noun) a person who is expert in the use of a bow and arrow |
Synonyms:
bowman |
|---|
| archerfish
|
(noun) any of several small freshwater fishes that catch insects by squirting water at them and knocking them into the water; found in Indonesia and Australia |
Synonyms:
Toxotes jaculatrix |
|---|
| archery
|
(noun) the sport of shooting arrows with a bow |
- |
|---|
| archespore
|
(noun) primitive cell or group of cells from which a mother cell develops |
Synonyms:
archesporium |
|---|
| archesporium
|
(noun) primitive cell or group of cells from which a mother cell develops |
Synonyms:
archespore |
|---|
| archetype
|
(noun) something that serves as a model or a basis for making copies |
Synonyms:
pilot,
original |
|---|
| archiannelid
|
(noun) small primitive marine worm lacking external segmentation and resembling polychaete larvae |
- |
|---|
| archidiaconate
|
(noun) office or position of an archdeacon |
- |
|---|
| archil
|
(noun) a purplish dye obtained from orchil lichens |
Synonyms:
orchil,
cudbear |
|---|
| (noun) any of various lecanoras that yield the dye archil |
Synonyms:
orchil |
| archimandrite
|
(noun) the superior of an abbey of monks |
Synonyms:
abbot |
|---|
| archine
|
(noun) a Russian unit of length (71 cm) |
- |
|---|
| archipallium
|
(noun) the olfactory cortex of the cerebrum |
Synonyms:
paleocortex |
|---|
| archipelago
|
(noun) a group of many islands in a large body of water |
- |
|---|
| architect
|
(noun) someone who creates plans to be used in making something (such as buildings) |
Synonyms:
designer |
|---|
| architectonics
|
(noun) the science of architecture |
Synonyms:
tectonics |
|---|
| architecture
|
(noun) an architectural product or work |
- |
|---|
| (noun) the discipline dealing with the principles of design and construction and ornamentation of fine buildings |
- |
| (noun) the profession of designing buildings and environments with consideration for their esthetic effect |
- |
| (noun) (computer science) the structure and organization of a computer's hardware or system software |
Synonyms:
computer architecture |
| architeuthis
|
(noun) largest mollusk known about but never seen (to 60 feet long) |
Synonyms:
giant squid |
|---|
| architrave
|
(noun) the molding around a door or window |
- |
|---|
| (noun) the lowest part of an entablature; rests immediately on the capitals of the columns |
- |
| archive
|
(noun) a depository containing historical records and documents |
- |
|---|
| archives
|
(noun) collection of records especially about an institution |
- |
|---|
| archivist
|
(noun) a person in charge of collecting and cataloguing archives |
- |
|---|
| archness
|
(noun) inappropriate playfulness |
Synonyms:
impertinence,
perkiness,
pertness,
sauciness |
|---|
| archosaur
|
(noun) extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts |
Synonyms:
archosaurian,
archosaurian reptile |
|---|
| archosaurian
|
(noun) extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts |
Synonyms:
archosaur,
archosaurian reptile |
|---|
| archpriest
|
(noun) a senior clergyman and dignitary |
Synonyms:
primate,
hierarch,
high priest,
prelate |
|---|
| archway
|
(noun) a passageway under a curved masonry construction |
Synonyms:
arch |
|---|
| arcminute
|
(noun) a unit of angular distance equal to a 60th of a degree |
Synonyms:
minute,
minute of arc |
|---|
| arcsec
|
(noun) the inverse function of the secant; the angle that has a secant equal to a given number |
Synonyms:
inverse secant,
arc secant,
arcsecant |
|---|
| arcsecant
|
(noun) the inverse function of the secant; the angle that has a secant equal to a given number |
Synonyms:
inverse secant,
arc secant,
arcsec |
|---|
| arcsecond
|
(noun) a 60th part of a minute of arc |
Synonyms:
second |
|---|
| arcsin
|
(noun) the inverse function of the sine; the angle that has a sine equal to a given number |
Synonyms:
inverse sine,
arc sine,
arcsine |
|---|
| arcsine
|
(noun) the inverse function of the sine; the angle that has a sine equal to a given number |
Synonyms:
inverse sine,
arc sine,
arcsin |
|---|
| arctan
|
(noun) the inverse function of the tangent; the angle that has a tangent equal to a given number |
Synonyms:
inverse tangent,
arc tangent,
arctangent |
|---|
| arctangent
|
(noun) the inverse function of the tangent; the angle that has a tangent equal to a given number |
Synonyms:
inverse tangent,
arc tangent,
arctan |
|---|
| arctic
|
(noun) a waterproof overshoe that protects shoes from water or snow |
Synonyms:
rubber,
galosh,
golosh,
gumshoe |
|---|
| arctiid
|
(noun) stout-bodied broad-winged moth with conspicuously striped or spotted wings; larvae are hairy caterpillars |
Synonyms:
arctiid moth |
|---|
| arcus
|
(noun) a whitish deposit in the shape of an arc that is sometimes seen in the cornea |
Synonyms:
arcus senilis |
|---|