英语词源字典 - 在线词源网站

rambutan [rambutan 词源字典]: "A red, plum-sized tropical fruit with soft spines and a slightly acidic taste", Early 18th century: from Malay rambūtan, from rambut 'hair', with allusion to the fruit's spines.[rambutan etymology, rambutan origin, 英语词源]
repacify: "To pacify again", Early 17th cent.; earliest use found in Samuel Daniel (?1563–1619), poet and historian. From re- + pacify. Compare post-classical Latin repacificare.
reniculus: " Anatomy . Each of the separate lobes or lobules of which the kidneys in some mammals and in the human fetus and neonate are composed", Early 19th cent.; earliest use found in William Kirby (1759–1850), entomologist and naturalist. From post-classical Latin reniculus from reni- + classical Latin -culus.
rhytidome: "In a stem or root: the outer part of the bark, composed of the periderm and the layers of dead tissue exterior to this", Mid 19th cent.; earliest use found in American Journal Pharmacy. From scientific Latin rhytidoma, probably from Greek ῥυτίδωμα wrinkle, in scholia (medieval Greek or earlier) on Aristophanes Plutus 1052, 1066 from ancient Greek ῥυτιδοῦν to make wrinkled, shrivel up (from ῥυτιδ-, ῥυτίς wrinkle from the same base as ῥυσός shrivelled, wrinkled + -ις, perhaps via a verbal adjective in -τός) + -μα.
rhodizite: "A rare mineral containing boron and beryllium, typically occurring in pegmatites as colourless, white, or yellowish crystals associated with rubellite", Mid 19th cent.; earliest use found in London and Edinburgh Philosophical Magazine. From German Rhodizit from Hellenistic Greek ῥοδίζειν to be rose-like (from ancient Greek ῥόδον rose + -ίζειν) + German -it; so called because it colours the flame of a blowpipe red.
reiki: "A healing technique based on the principle that the therapist can channel energy into the patient by means of touch, to activate the natural healing processes of the patient’s body and restore physical and emotional well-being", Japanese, literally 'universal life energy'.
rhodamine: "Any of a number of synthetic dyes derived from xanthene, used to colour textiles", Late 19th century: from rhodo- 'rose-coloured' + amine.
rhynchocephalian: "Of or relating to the diapsid reptile order Rhynchocephalia (infraclass Lepidosauromorpha), which comprises such superficially lizard-like forms as the modern tuataras (genus Sphenodon) and various Mesozoic fossil forms, known collectively as beak-heads", Mid 19th cent. From scientific Latin Rhynchocephalia, order name (A. Günther 1867, in Philos. Trans. (Royal Soc.) 157 626; from rhyncho- + ancient Greek κεϕαλή head + scientific Latin -ia, after Rhynchocephalus, genus name) + -an.
rhizophorous: "Belonging or relating to the genus Rhizophora or the family Rhizophoraceae of mangroves", Mid 19th cent. From rhizo- + -phorous.
rachial: "Characterized by a rachis; of or relating to a rachis", Mid 19th cent.; earliest use found in Proceedings of the Zoological Society of London. From rachis + -al.
reciprocal altruism: "Behaviour that benefits another unrelated organism, carried out in the expectation of its being reciprocated; the theory holding that behaviour of this type has evolved because is likely to increase the chances of survival or reproductive success for the apparently altruistic organism", 1970s.
receptibility: "Capacity for receiving", Mid 17th cent. From receptible + -ity: see -bility.
rancidification: "The process of becoming rancid; the oxidation of oils and fats which this involves", Mid 19th cent.; earliest use found in Scientific American. From rancid + -ification.
rhombohedron: "A solid figure whose faces are six equal rhombuses", Mid 19th century: from rhombus + -hedron, on the pattern of words such as polyhedron.
rhomboid ligament: "The costoclavicular ligament, which extends between the sternal end of the clavicle and the cartilage of the first rib", Early 19th cent..
rhizogenic: "Of, relating to, or promoting the formation of roots; root-producing", Late 19th cent.; earliest use found in Frederic Bower (1855–1948), botanist. After German rhizogen.
rachialgia: "Pain in the spine or back", Late 18th cent.; earliest use found in David MacBride (1726–1778), chemist and physician. From post-classical Latin rachialgia from rachis + -algia.
re-embarkment: "= re-embarkation", Early 17th cent.; earliest use found in John Smith. From re- + embarkment, after re-embark. Compare French rembarquement, Italian (now rare) rimbarcamento.
rhyncholite: "A fossilized jaw (beak) of a cephalopod mollusc", Mid 19th cent.; earliest use found in William Buckland (1784–1856), geologist and dean of Westminster. From rhyncho- + -lite, after French rhyncolite.
rectangulometer: "An instrument used to determine whether an angle is a right angle", Mid 19th cent.; earliest use found in Charles Holtzapffel (1806–1847), mechanical engineer and technical writer. From post-classical Latin rectangulum rectangle + -ometer.