orthopantomographyoudaoicibaDictYouDict[orthopantomograph 词源字典]
"A trademark for: an instrument for performing orthopantomography", 1950s. From ortho- + pantomograph. Compare orthopantomogram, orthopantomography.[orthopantomograph etymology, orthopantomograph origin, 英语词源]
olivayoudaoicibaDictYouDict
" Zoology (In form Oliva) a genus of marine gastropod molluscs of the family Olividae, characterized by glossy cylindrical shells; (also oliva; more fully oliva shell) a member of this genus; an olive shell", Early 19th cent.; earliest use found in Philosophical Transactions of the Royal Society of London.
OvulayoudaoicibaDictYouDict
"A genus of gastropod molluscs related to the cowries (family Ovulidae), native especially to the tropical Pacific Ocean, some species of which have a pure white oval shell; (also ovula) a member of this genus. Chiefly attributive in ovula shell", Early 19th cent.; earliest use found in Philosophical Transactions of the Royal Society of London. From scientific Latin Ovula, genus name from post-classical Latin ovulum.
off-bearyoudaoicibaDictYouDict
"To bear (something) off; specifically to carry (newly moulded bricks) away from the moulding machine or table; to carry (wood, etc.) away from a saw or machine. Also without object with passive meaning", Mid 19th cent. From off- + bear. Compare off-bearer.
ornisyoudaoicibaDictYouDict
"The birds of a region collectively; = avifauna", Mid 19th cent.; earliest use found in Ibis: a quarterly journal of ornithology. From German Ornis from ancient Greek ὄρνις bird.
ovicide (1)youdaoicibaDictYouDict
"The killing of sheep", Early 19th cent.; earliest use found in Samuel Taylor Coleridge (1772–1834), poet, critic, and philosopher. From ovi- + -cide.
ovicide (2)youdaoicibaDictYouDict
"An agent that kills or destroys eggs or ova, especially those of insects, mites, or other pests or parasites", 1920s. From ovi- + -cide, after ovicidal.
ovicide (3)youdaoicibaDictYouDict
"The killing or destroying of eggs or ova", 1980s. From ovi- + -cide. Compare earlier ovicide.
odographyoudaoicibaDictYouDict
"A device for automatically recording the course of a vehicle. Also (in early use): an instrument for measuring the length of stride of a person, animal, etc., and the number of paces taken", Late 19th cent.; earliest use found in Nature: a weekly journal of science. From French odographe (Étienne-Jules Marey, 1878) from ancient Greek ὁδός way + French -graphe.
opinionableyoudaoicibaDictYouDict
"= opinable. Also as noun: an object of opinion", Late 15th cent.; earliest use found in George Ripley (d. c1490), alchemist and Augustinian canon. From opinion + -able.
out-eatyoudaoicibaDictYouDict
"To surpass in eating, eat more than", Mid 16th cent.; earliest use found in John Palsgrave (d. 1554), teacher and scholar of languages. From out- + eat.
oblivescenceyoudaoicibaDictYouDict
"= obliviscence", Late 19th cent.; earliest use found in William James (1842–1910), philosopher and psychologist. Alteration of obliviscence after -escence.
over-lustyyoudaoicibaDictYouDict
"Too lusty, excessively lusty", Late 15th cent. From over- + lusty.
orchitisyoudaoicibaDictYouDict
"Inflammation of one or both of the testicles", Late 18th century: modern Latin, from Greek orkhis 'testicle' + -itis.
octetyoudaoicibaDictYouDict
"A group of eight people or things, in particular", Mid 19th century: from Italian ottetto or German Oktett, on the pattern of duet and quartet.
oscillometeryoudaoicibaDictYouDict
" Medicine . Any of various instruments used to measure physiological oscillations, specifically in blood pressure", Late 19th cent.; earliest use found in Scientific American. From oscillo- + -meter.
os (1)youdaoicibaDictYouDict
"A bone (used chiefly in Latin names of individual bones, e.g. os trapezium)", Latin.
os (2)youdaoicibaDictYouDict
"An opening or entrance to a passage, especially one at either end of the cervix of the womb", Mid 18th century: from Latin, 'mouth'.
olidyoudaoicibaDictYouDict
"Smelling extremely unpleasant", Late 17th century: from Latin olidus 'smelling', from olere 'to smell'.
ostiaryyoudaoicibaDictYouDict
"A doorkeeper, especially of a church; specifically a member of the lowest of the four lesser orders in the pre-Reformation Western Church, and later in the Roman Catholic Church. Now historical", Late 15th cent.; earliest use found in Higden's Polychronicon. From classical Latin ōstiārius ostiarius; compare -ary.