| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| arachnidial | adjective | Of or pertaining to the Arachnida., Pertaining to the arachnidium. |
| arachnidium | noun | The glandular organ in which the material for the web of spiders is secreted. |
| arachnoidal | adjective | Pertaining to the arachnoid membrane; arachnoid. |
| arachnoidea | noun pl. | Same as Arachnida. |
| arachnology | noun | The department of zoology which treats of spiders and other Arachnida. |
| arbitrament | noun | Determination; decision; arbitration., The award of arbitrators. |
| arbitrarily | adverb | In an arbitrary manner; by will only; despotically; absolutely. |
| arbitrating | present participle & vb. noun | of Arbitrate |
| arbitration | noun | The hearing and determination of a cause between parties in controversy, by a person or persons chosen by the parties. |
| arbitratrix | noun | A female who arbitrates or judges. |
| arborescent | adjective | Resembling a tree; becoming woody in stalk; dendritic; having crystallizations disposed like the branches and twigs of a tree. |
| arbor vitae | An evergreen tree of the cypress tribe, genus Thuja. The American species is the T. occidentalis., The treelike disposition of the gray and white nerve tissues in the cerebellum, as seen in a vertical section. | |
| archaeology | noun | The science or study of antiquities, esp. prehistoric antiquities, such as the remains of buildings or monuments of an early epoch, inscriptions, implements, and other relics, written manuscripts, etc. |
| archaeozoic | adjective | Like or belonging to the earliest forms of animal life. |
| archangelic | adjective | Of or pertaining to archangels; of the nature of, or resembling, an archangel. |
| archdiocese | noun | The diocese of an archbishop. |
| archduchess | noun | The consort of an archduke; also, a princess of the imperial family of Austria. See Archduke. |
| archdukedom | noun | An archduchy. |
| archebiosis | noun | The origination of living matter from non-living. See Abiogenesis. |
| archegonial | adjective | Relating to the archegonium. |
| archegonium | noun | The pistillidium or female organ in the higher cryptogamic plants, corresponding to the pistil in flowering plants. |
| archenteric | adjective | Relating to the archenteron; as, archenteric invagination. |
| archenteron | noun | The primitive enteron or undifferentiated digestive sac of a gastrula or other embryo. See Illust. under Invagination. |
| archer fish | A small fish (Toxotes jaculator), of the East Indies; — so called from its ejecting drops of water from its mouth at its prey. The name is also applied to Chaetodon rostratus. | |
| archimedean | adjective | Of or pertaining to Archimedes, a celebrated Greek philosopher; constructed on the principle of Archimedes’ screw; as, Archimedean drill, propeller, etc. |
| archipelago | noun | The Grecian Archipelago, or Aegean Sea, separating Greece from Asia Minor. It is studded with a vast number of small islands., Hence: Any sea or broad sheet of water interspersed with many islands or with a group of islands. |
| architector | noun | An architect. |
| architraved | adjective | Furnished with an architrave. |
| archmarshal | noun | The grand marshal of the old German empire, a dignity that to the Elector of Saxony. |
| archprelate | noun | An archbishop or other chief prelate. |
| archprimate | noun | The chief primate. |
| archtraitor | noun | A chief or transcendent traitor. |
| arduousness | noun | The quality of being arduous; difficulty of execution. |
| arenicolite | noun | An ancient wormhole in sand, preserved in the rocks. |
| areopagitic | adjective | Pertaining to the Areopagus. |
| areosystyle | adjective & noun | See Intercolumniation, and Araeosystyle. |
| argand lamp | A lamp with a circular hollow wick and glass chimney which allow a current of air both inside and outside of the flame. | |
| argentation | noun | A coating or overlaying with silver. |
| argumentize | verb i. | To argue or discuss. |
| argus shell | A species of shell (Cypraea argus), beautifully variegated with spots resembling those in a peacock’s tail. | |
| aristocracy | noun | Government by the best citizens., A ruling body composed of the best citizens., A form a government, in which the supreme power is vested in the principal persons of a state, or in a privileged order; an oligarchy., The nobles or chief persons in a state; a privileged class or patrician order; (in a popular use) those who are regarded as superior to the rest of the community, as in rank, fortune, or intellect. |
| aristotelic | adjective | Pertaining to Aristotle or to his philosophy. |
| armamentary | noun | An armory; a magazine or arsenal. |
| arminianism | noun | The religious doctrines or tenets of the Arminians. |
| armipotence | noun | Power in arms. |
| aromatizing | present participle & vb. noun | of Aromatize |
| arquebusade | noun | The shot of an arquebus., A distilled water from a variety of aromatic plants, as rosemary, millefoil, etc.; — originally used as a vulnerary in gunshot wounds. |
| arquebusier | noun | A soldier armed with an arquebus. |
| arraignment | noun | The act of arraigning, or the state of being arraigned; the act of calling and setting a prisoner before a court to answer to an indictment or complaint., A calling to an account to faults; accusation. |
| arrangement | noun | The act of arranging or putting in an orderly condition; the state of being arranged or put in order; disposition in suitable form., The manner or result of arranging; system of parts disposed in due order; regular and systematic classification; as, arrangement of one’s dress; the Linnaean arrangement of plants., Preparatory proceeding or measure; preparation; as, we have made arrangement for receiving company., Settlement; adjustment by agreement; as, the parties have made an arrangement between themselves concerning their disputes; a satisfactory arrangement., The adaptation of a composition to voices or instruments for which it was not originally written., A piece so adapted; a transcription; as, a pianoforte arrangement of Beethoven’s symphonies; an orchestral arrangement of a song, an opera, or the like. |
| arrentation | A letting or renting, esp. a license to inclose land in a forest with a low hedge and a ditch, under a yearly rent. | |
| arrestation | noun | Arrest. |
| arrhythmous | adjective | Being without rhythm or regularity, as the pulse. |
| arriere-ban | noun | A proclamation, as of the French kings, calling not only their immediate feudatories, but the vassals of these feudatories, to take the field for war; also, the body of vassals called or liable to be called to arms, as in ancient France. |
| arrow grass | noun | An herbaceous grasslike plant (Triglochin palustre, and other species) with pods opening so as to suggest barbed arrowheads. |
| arrowheaded | adjective | Shaped like the head of an arrow; cuneiform. |
| arsenicated | imp. & past participle | of Arsenicate |
| arterialize | verb t. | To transform, as the venous blood, into arterial blood by exposure to oxygen in the lungs; to make arterial. |
| arteriology | noun | That part of anatomy which treats of arteries. |
| arteriotomy | noun | The opening of an artery, esp. for bloodletting., That part of anatomy which treats of the dissection of the arteries. |
| arthritical | adjective | Pertaining to the joints., Of or pertaining to arthritis; gouty. |
| arthrodynia | noun | An affection characterized by pain in or about a joint, not dependent upon structural disease. |
| arthrodynic | adjective | Pertaining to arthrodynia, or pain in the joints; rheumatic. |
| articularly | adverb | In an articular or an articulate manner. |
| articulated | imp. & past participle | of Articulate, United by, or provided with, articulations; jointed; as, an articulated skeleton., Produced, as a letter, syllable, or word, by the organs of speech; pronounced. |
| articulator | noun | One who, or that which, articulates; as: (a) One who enunciates distinctly. (b) One who prepares and mounts skeletons. (c) An instrument to cure stammering. |
| artificious | adjective | Artificial. |
| artillerist | noun | A person skilled in artillery or gunnery; a gunner; an artilleryman. |
| artlessness | noun | The quality of being artless, or void of art or guile; simplicity; sincerity. |
| artocarpous | adjective | Of or pertaining to the breadfruit, or to the genus Artocarpus. |
| arundineous | adjective | Abounding with reeds; reedy. |