英语词源字典 - 在线词源网站

ad extra [ad extra 词源字典]: "With effect or result in the outside world (as opposed to one's own mind, self, etc.); in the world at large; externally, perceivably; especially ( Theology ) with reference to an action or characteristic of God which is communicable to the world beyond the Persons of the Trinity. Opposed to ad intra", Early 17th cent.; earliest use found in Thomas Morton (d. ?1647), colonist in America. From post-classical Latin ad extra towards the outside from classical Latin ad to, towards + extrā.[ad extra etymology, ad extra origin, 英语词源]
aegilops: " Medicine . An abscess or ulcer of the inner canthus of the eye, especially when involving a lacrimal duct or the lacrimal sac", Late 16th cent.; earliest use found in John Banister (1532/3–?1610), surgeon. From classical Latin aegilops ulcer in the eye, lacrimal fistula, species of oak tree, species of grass from Hellenistic Greek αἰγίλωψ ulcer in the eye, lacrimal fistula, species of oak tree, species of grass, of uncertain origin, perhaps two (or three) separate words.
allotypy: "The occurrence of an immunoglobulin or other protein in genetically determined, antigenically distinct forms in different members of the same species", 1950s; earliest use found in Science. From French allotypie from allo- + type + -ie.
acritude: "= acridity", Mid 17th cent.; earliest use found in Robert Gentilis (b. 1590), translator. From classical Latin ācritūdō pungency, bitterness, keenness, energy, harshness, fierceness, cruelty from ācris sharp + -tūdō.
aesthesis: "The perception of the external world by the senses", Early 17th cent.; earliest use found in John Deacon (fl. 1585–1616). From ancient Greek αἴσθησις sense perception, sensation, perception from the stem of αἰσθάνεσθαι to perceive (probably from the same base as ἀίειν to perceive, hear from the same Indo-European base as Sanskrit āvis-, Avestan āviš manifestly, Old Church Slavonic avě openly) + -σις.
acrolith: "In ancient Greece: a statue with the head and extremities made of stone and the trunk usually of wood", Mid 19th cent. From classical Latin acrolithos (Vitruvius), acrolithus (attested in an inscription) having extremities of marble from Hellenistic Greek ἀκρόλιθος having the ends of stone from ancient Greek ἄκρο- + λίθος stone; originally after German Akrolith.
afforest: "Convert (land) into forest, especially for commercial exploitation", Early 16th century: from medieval Latin afforestare, from ad- 'to' (expressing change) + foresta 'forest'.
acaudate: "Tailless, acaudal; specifically = anuran", Mid 19th cent.; earliest use found in Todd's Cyclopaedia of Anatomy and Physiology. From scientific Latin acaudatus from a- + caudatus.
actinian: "A sea anemone", Mid 18th century: from the modern Latin genus name Actinia (from Greek aktis, aktin- 'ray') + -an.
adumbral: "Shadowy, shady", Mid 19th cent.; earliest use found in Blackwood's Magazine. In sense 1 from ad- + classical Latin umbra shade + -al.
affixion: "The action of affixing, attaching, or fastening something; the state of being affixed; specifically crucifixion", Late Middle English; earliest use found in Mirour of Mans Saluacioune. From post-classical Latin affīxion-, affīxio action of affixing, especially with reference to the crucifixion, action of affixing a poster from classical Latin affīx-, past participial stem of affīgere + -iō.
actinic: "(Of light or lighting) able to cause photochemical reactions, as in photography, through having a significant short wavelength or ultraviolet component", Mid 19th century: from Greek aktis, aktin- 'ray' + -ic.
agonic line: "An imaginary line round the earth passing through both the north pole and the north magnetic pole, at any point on which a compass needle points to true north", Mid 19th century: from Greek agōnios, agōnos (from a- 'without' + gonia 'angle') + -ic.
acridid: "An orthopteran insect of the family Acrididae, which includes locusts and typical (short-horned) grasshoppers", Late 19th cent. From scientific Latin Acrida, genus name ( Linnaeus Systema Naturae (ed. 10, 1758) I. 427; from ancient Greek ἀκρίδ-, ἀκρίς locust: see acrid) + -id, after scientific Latin Acridiidae, family name.
acrosome: "A membrane-bound, darkly staining, granular structure surrounding the anterior end of the nucleus in a spermatozoon, containing enzymes that assist in the penetration of the ovum", Late 19th cent. From acro- + -some, after German Akrosoma.
acerbate (1): "Embittered; severe", Mid 19th cent.; earliest use found in The Echo. From classical Latin acerbātus, past participle of acerbāre. Compare earlier acerbate.
acerbate (2): "To exacerbate (a negative feeling or problem); (occasionally) †to sour or embitter (a person) ( obsolete )", Mid 17th cent.; earliest use found in Nicholas Billingsley (bap. 1633, d. 1709), religious poet and Presbyterian minister. From classical Latin acerbāt-, past participial stem of acerbāre to embitter, to make worse, aggravate from acerbus.
alitrunk: "The mesosoma of a hymenopterous insect, especially an ant, consisting of the thorax and the propodeum fused together", Early 19th cent.; earliest use found in William Kirby (1759–1850), entomologist and naturalist. From classical Latin āla wing + trunk after French tronc alifère.
adnation: "Attachment of the surface of one part to that of another part; the condition of being adnate; especially the union of one whorl of floral organs to another dissimilar whorl, as stamens to petals", Mid 19th cent.; earliest use found in Asa Gray (1810–1888), botanist. From adnate + -ion; compare -ation.
acidulent: "= acidulous 2. Now rare", Early 19th cent. From classical Latin acidulus + -ent; compare -ulent.