English-Thai Dictionary
platinum
ADJ ซึ่ง ทำ ด้วย ทองคำขาว ซึ่ง ทำ มาจาก แพล ติ นัม sueng-tam-duai-tong-kam-kao
platinum
N ทองคำขาว แพล ติ นัม blond tong-kam-kao
platinum blonde
N หญิง ผม ทอง อ่อน หรือ ผม สี เงิน ying-pom-tong-on-rue-pom-se-ngen
Webster's 1913 Dictionary
PLATINUM
Plat "i *num, n. Etym: [NL. , fr. Sp. platina, from plata silver, LL. plata a thin plate of metal. See Plate, and cf. Platina. ] (Chem. )
Defn: A metallic element, intermediate in value between silver and gold, occurring native or alloyed with other metals, also as the platinum arsenide (sperrylite ). It is heavy tin-white metal which is ductile and malleable, but very infusible, and characterized by its resistance to strong chemical reagents. It is used for crucibles, for stills for sulphuric acid, rarely for coin, and in the form of foil and wire for many purposes. Specific gravity 21.5. Atomic weight 194.3. Symbol Pt. Formerly called platina. Platinum black (Chem. ), a soft, dull black powder, consisting of finely divided metallic platinum obtained by reduction and precipitation from its solutions. It absorbs oxygen to a high degree, and is employed as an oxidizer. -- Platinum lamp (Elec.), a kind of incandescent lamp of which the luminous medium is platinum. See under Incandescent. -- Platinum metals (Chem. ), the group of metallic elements which in their chemical and physical properties resemble platinum. These consist of the light platinum group, viz. , rhodium, ruthenium, and palladium, whose specific gravities are about 12; and the heavy platinum group, viz. , osmium, iridium, and platinum, whose specific gravities are over 21. -- Platinum sponge (Chem. ), metallic platinum in a gray, porous, spongy form, obtained by reducing the double chloride of platinum and ammonium. It absorbs oxygen, hydrogen, and certain other gases, to a high degree, and is employed as an agent in oxidizing.
New American Oxford Dictionary
platinum
plat i num |ˈplatn-əm ˈplædənəm | ▶noun a precious silvery-white metal, the chemical element of atomic number 78. It was first encountered by the Spanish in South America in the 16th century and is used in jewelry, electrical contacts, laboratory equipment, and industrial catalysts. (Symbol: Pt ) • [ often as modifier ] the grayish-white or silvery color of platinum: a platinum wig. PHRASES go platinum (of a recording ) achieve sales meriting a platinum disk. ORIGIN early 19th cent.: alteration of earlier platina, from Spanish, diminutive of plata ‘silver. ’
platinum black
plat i num black ▶noun platinum in the form of a finely divided black powder, used as a catalyst and absorbent for gases.
platinum blonde
plat i num blonde |ˈplædənəm | ▶noun a person with silvery-blond hair. ▶adjective (of hair ) silvery blond.
platinum card
plat i num card ▶noun a credit card made available to individuals with high credit ratings, which carries certain privileges that are unavailable to holders of other cards.
platinum disk
plat i num disk ▶noun a framed disk of platinum awarded to a recording artist or group for sales of a recording exceeding one million copies (for albums ) or two million copies (for singles ).
platinum metals
plat i num met als ▶plural noun Chemistry the six metals platinum, palladium, ruthenium, osmium, rhodium, and iridium, which have similar properties and tend to occur together in nature.
Oxford Dictionary
platinum
platinum |ˈplatɪnəm | ▶noun [ mass noun ] a precious silvery-white metal, the chemical element of atomic number 78. It was first encountered by the Spanish in South America in the 16th century, and is used in jewellery, electrical contacts, laboratory equipment, and industrial catalysts. (Symbol: Pt ) • [ often as modifier ] greyish white or silvery like platinum: a platinum wig. PHRASES go platinum (of a recording ) achieve sales meriting a platinum disc. ORIGIN early 19th cent.: alteration of earlier platina, from Spanish, diminutive of plata ‘silver ’.
platinum black
plat |inum black ▶noun [ mass noun ] platinum in the form of a finely divided black powder, used as a catalyst and absorbent for gases.
platinum blonde
platinum blonde (also platinum blond ) ▶adjective (of hair ) silvery-blonde. ▶noun a person with silvery-blonde hair.
platinum card
plat i num card ▶noun a credit card made available to individuals with high credit ratings, which carries certain privileges that are unavailable to holders of other cards.
platinum disc
plat |inum disc ▶noun a framed platinum disc awarded to a recording artist or group for sales of a record exceeding a specified high figure.
platinum metals
plat |inum metals ▶plural noun Chemistry the six metals platinum, palladium, ruthenium, osmium, rhodium, and iridium, which have similar properties and tend to occur together in nature.
Sanseido Wisdom Dictionary
platinum
plat i num /plǽt (ə )nəm |plǽtɪ -/名詞 U 〘化 〙白金, プラチナ 〘金属元素; ⦅記号 ⦆Pt 〙.~̀ bl ó nde ⦅くだけて ⦆プラチナブロンド (の人 ) 〘特に染めた白金色の髪 〙.