英语词源字典 - 在线词源网站

gigaflop [gigaflop 词源字典]: "A unit of computing speed equal to one thousand million floating-point operations per second", 1970s: back-formation from gigaflops (see giga-, -flop).[gigaflop etymology, gigaflop origin, 英语词源]
gas-proof (1): "Impermeable to (especially poisonous) gas; gas-tight", Mid 19th cent.; earliest use found in Boston Daily Atlas. From gas + proof.
gas-proof (2): "To make (an enclosure, material, etc.) gas-proof", Mid 19th cent. From gas-proof.
gemmule: "A tough-coated dormant cluster of embryonic cells produced by a freshwater sponge for development in more favourable conditions", Mid 19th century: from French, from Latin gemmula, diminutive of gemma 'bud, jewel'.
Gram stain: "A staining technique for the preliminary identification of bacteria, in which a violet dye is applied, followed by a decolorizing agent and then a red dye. The cell walls of certain bacteria (denoted Gram-positive) retain the first dye and appear violet, while those that lose it (denoted Gram-negative) appear red", Late 19th century: named after Hans C. J. Gram (1853–1938), the Danish physician who devised the method.
geoisotherm: "A line (either imaginary or in a diagram) connecting points in the interior of the earth having the same temperature", Late 19th cent.; earliest use found in American Journal of Science.
Germanism: "An idiom, grammatical construction, word, or other linguistic feature particular to German, especially one used or adopted in another language", Early 17th cent.; earliest use found in Thomas Coryate (?1577–1617), traveller and writer. From German + -ism. Compare post-classical Latin germanismus.
gaita: "A kind of bagpipe played in northern Spain and Portugal", Spanish and Portuguese.
galligaskins: "Breeches, trousers, or gaiters", Late 16th century: perhaps an alteration (influenced by galley and Gascon) of obsolete French gargesque, from Italian grechesca, feminine of grechesco 'Greek'.
gallus: "Bold, cheeky, or flashy", Late Middle English (in the sense 'fit to be hanged'): variant of gallows used attributively.
glaikit: "Stupid, foolish, or thoughtless", Late Middle English: related to Scots glaiks 'tricks, pranks'.
guddle: "Fish with the hands by groping under the stones or banks of a stream", Mid 17th century: of unknown origin.
glenoid cavity: "A shallow depression on a bone into which another bone fits to form a joint, especially that on the scapula into which the head of the humerus fits", Early 18th century: glenoid from French glénoïde, from Greek glēnoeidēs, from glēnē 'socket'.
godown: "(In eastern Asia, especially India) a warehouse", Late 16th century: from Portuguese gudão, from Tamil kiṭaṅku, Malayalam kiṭaṅṅu, or Kannada gadaṅgu 'store, warehouse'.
glossal: "Of the tongue; lingual", Early 19th century: from Greek glōssa 'tongue' + -al.
goddam: "Used for emphasis, especially to express anger or frustration", Mid 17th century: abbreviation of God damn (me).
gen: "Information", Second World War (originally used in the armed services): perhaps from the first syllable of general information.
goog: "An egg", Early 20th century: abbreviation of googie.
glycoside: "A compound formed from a simple sugar and another compound by replacement of a hydroxyl group in the sugar molecule. Many drugs and poisons derived from plants are glycosides", Late 19th century: from glyco- 'relating to sugar', on the pattern of glucoside.
gemmiparous: "(Of a plant or animal) reproducing by gemmation", Late 18th century: from modern Latin gemmiparus, from Latin gemma 'bud, jewel' + parere 'produce, give birth to'.