英语词源字典 - 在线词源网站

ovogenesis [ovogenesis 词源字典]: "= oogenesis", Mid 19th cent. From ovo- + -genesis. Compare French ovogénie, ovogenèse.[ovogenesis etymology, ovogenesis origin, 英语词源]
ornithischian: "Relating to or denoting herbivorous dinosaurs of an order distinguished by having a pelvic structure resembling that of birds", Early 20th century: from modern Latin Ornithiscia, from Greek ornis, ornith- 'bird' + iskhion 'hip joint'.
oliganthous: "Having few or sparse flowers", Mid 19th cent.; earliest use found in Robert Mayne (1808–1868). From oligo- + ancient Greek ἄνθος flower + -ous, after scientific Latin oliganthus.
ophicalcite: "A form of marble consisting of a mixture of serpentine and calcite; a particular variety of this", Mid 19th cent.; earliest use found in Quarterly Journal of the Geological Society of London. From ancient Greek ὄϕις serpent + calcite, after French ophicalce.
oryctognosy: "The science or study of minerals; mineralogy", Early 19th cent. From orycto- + -gnosy, after German Oryktognosie (A. G. Werner, 1779 or earlier). Compare scientific Latin oryctognosia, French oryctognosie.
oscitancy: "Drowsiness as evidenced by yawning; dullness; indolence, negligence, inattention", Early 17th cent. From oscitant: see -ancy). Compare post-classical Latin oscitantia.
outskirts: "The outer parts of a town or city", Late 16th century: from out + skirt.
objet d'art: "A small decorative or artistic object, typically when regarded as a collectable item", French, literally 'object of art'.
oxter: "A person’s armpit", Old English ōhsta, ōxta.
owt: "Anything", Mid 19th century: variant of aught¹.
op art: "A form of abstract art that gives the illusion of movement by the precise use of pattern and colour, or in which conflicting patterns emerge and overlap. Bridget Riley and Victor Vasarely are its most famous exponents", 1960s: shortened from optical art, on the pattern of pop art.
obturator: "Either of two muscles covering the outer front part of the pelvis on each side and involved in movements of the thigh and hip", Early 18th century: from medieval Latin, literally 'obstructor', from obturare 'stop up'.
opisthion: "The midpoint of the posterior border of the foramen magnum", Late 19th cent. From French opisthion from ancient Greek ὀπίσθιον hinder part, use as noun of neuter singular of ὀπισθίος belonging to the hinder parts from ὄπισθεν behind + -ιος, suffix forming adjectives.
oxalaemia: "The presence of (an abnormally high concentration of) oxalate in the blood", Late 19th cent.; earliest use found in The New Sydenham Society's Lexicon of Medicine and the Allied Sciences.
oxalic acid: "A poisonous crystalline acid with a sour taste, present in rhubarb leaves, wood sorrel, and other plants", Late 18th century: oxalic from French oxalique, via Latin from Greek oxalis 'wood sorrel'.
oxalated: "Treated with an oxalate, especially as an anticoagulant; containing an oxalate", Late 19th cent.; earliest use found in Journal of Pathology and Bacteriology. From oxalate + -ed, perhaps after French oxalaté.
ordinand: "A person who is training to be ordained as a priest or minister", Mid 19th century: from Latin ordinandus, gerundive of ordinare 'put in order' (see ordain).
omohyoid: "Designating a long slender digastric muscle which arises from the upper border of the shoulder blade and passes obliquely along the side and front of the neck to the lower border of the hyoid bone", Mid 19th cent.; earliest use found in George Viner Ellis (1812–1900). From omo- + hyoid, after omohyoideus.
Old Nick: "An informal name for the Devil", Mid 17th century: probably from a pet form of the given name Nicholas.
obi: "A broad sash worn round the waist of a Japanese kimono", Japanese, literally 'belt'.