英语词源字典 - 在线词源网站

ophthalmometer [ophthalmometer 词源字典]: "An instrument for measuring the radius of curvature of the cornea", Mid 19th cent.; earliest use found in Robley Dunglison (1798–1869), physician and medical writer. From ophthalmo- + -meter.[ophthalmometer etymology, ophthalmometer origin, 英语词源]
oleiferous: "(Of seeds, glands, etc.) producing oil", Early 19th century: from Latin oleum 'oil' + -ferous.
orthocentre: "The point of intersection of the three perpendiculars drawn from the vertices of a triangle to the opposite sides", Mid 19th cent. From ortho- + centre.
optometer: "An instrument for testing the refractive power of the eye", Mid 18th century: from Greek optos 'seen' + -meter.
oestrogen therapy: "Treatment with oestrogen; oestrogen replacement therapy", 1940s; earliest use found in Philosophical Transactions of the Royal Society of London.
ornitholite: "A fossil formed from the remains of a bird", Early 19th cent.; earliest use found in Amos Eaton (1776–1842). From ornitho- + -lite, after scientific Latin Ornitholithus (Linnaeus Systema Naturae) or French ornitholithe.
ophiophagous: "Feeding on snakes", Mid 17th cent.; earliest use found in Thomas Browne (1605–1682), physician and author. From classical Latin Ophiophagī the snake-eaters + -ous.
ossiferous: "(Of a cave or stratum) containing or yielding deposits of bone, especially fossil bone", Early 19th century: from Latin os, oss- 'bone' + -ferous.
onchocerciasis: "Technical term for river blindness", Early 20th century: from modern Latin Onchocerca (from Greek onkos 'barb' + kerkos 'tail') + -iasis.
ommatophore: "A part of an invertebrate animal, especially a tentacle, which bears an eye", Late 19th century: from Greek omma, ommat- 'eye' + -phore.
ontogenesis: "The development of an individual organism or anatomical or behavioural feature from the earliest stage to maturity", Late 19th century: from Greek ōn, ont- 'being' + genesis 'birth'.
outpour (1): "The act of pouring out; that which pours out; an overflow, a flood", Mid 19th cent.; earliest use found in The Reader. From out- + pour, after outpour or to pour out.
outpour (2): "To pour or send out in or as in a stream", Mid 16th cent.; earliest use found in Thomas Phaer (?1510–1560), translator and physician. From out- + pour.
oligosaprobic: "Of, designating, or inhabiting an aquatic environment that is rich in dissolved oxygen and (relatively) free from decayed organic matter", 1920s. From oligo- + saprobic, after German Oligosaprob.
orolingual: "Of or relating to the mouth and tongue", Late 19th cent.; earliest use found in Philosophical Transactions of the Royal Society of London. From oro- + -lingual.
olfactory bulb: "A bulb-like terminal expansion of the telencephalon on which the olfactory nerve fibres end", Mid 19th cent.; earliest use found in Robley Dunglison (1798–1869), physician and medical writer. From olfactory + bulb, apparently after post-classical Latin bulbus olfactorius.
olfactible: "Capable of being smelled", Early 18th cent.; earliest use found in George Berkeley (1685–1753), Church of Ireland bishop of Cloyne and philosopher. From classical Latin olfact-, past participial stem of olfacere to smell + -ible.
oviposit: "(Especially of an insect) lay an egg or eggs", Early 19th century: from ovi- 'egg' + Latin posit- 'placed' (from the verb ponere).
oblivionize: "To consign to oblivion", Late 16th cent.; earliest use found in Thomas Nashe (d. c1601), writer. From oblivion + -ize.
opotherapy: "= organotherapy", Late 19th cent.; earliest use found in Index Medicus. From ancient Greek ὀπός vegetable juice + therapy, perhaps after French opothérapie.