spongy platinum

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• Spongy platinum — Spongy Spon gy (sp[u^]n j[y^]), a. 1. Soft, and full of cavities; of an open, loose, pliable texture; as, a spongy excrescence; spongy earth; spongy cake; spongy bones. [1913 Webster] 2. Wet; drenched; soaked and soft, like sponge; rainy. Spongy… …   The Collaborative International Dictionary of English

• spongy platinum — or platinum sponge noun Platinum in a finely divided state • • • Main Entry: ↑sponge …   Useful english dictionary

• Spongy — Spon gy (sp[u^]n j[y^]), a. 1. Soft, and full of cavities; of an open, loose, pliable texture; as, a spongy excrescence; spongy earth; spongy cake; spongy bones. [1913 Webster] 2. Wet; drenched; soaked and soft, like sponge; rainy. Spongy April.… …   The Collaborative International Dictionary of English

• Spongy lead — Spongy Spon gy (sp[u^]n j[y^]), a. 1. Soft, and full of cavities; of an open, loose, pliable texture; as, a spongy excrescence; spongy earth; spongy cake; spongy bones. [1913 Webster] 2. Wet; drenched; soaked and soft, like sponge; rainy. Spongy… …   The Collaborative International Dictionary of English

• platinum — A metallic element, atomic no. 78, atomic wt. 195.08, used for making small parts for chemical apparatus because of its resistance to acids; in powdered form (p. black), it is an important catalyst in hydrogenation. Some of its salts have been… …   Medical dictionary

• platinum sponge — noun : metallic platinum in a gray porous spongy form that is obtained by reducing ammonium chloroplatinate, that occludes large volumes of oxygen, hydrogen, and other gases, and that is used as a catalyst * * * spongy platinum or platinum sponge …   Useful english dictionary

• Platinum — Plat i*num, n. [NL., fr. Sp. platina, from plata silver, LL. plata a thin plate of metal. See {Plate}, and cf. {Platina}.] (Chem.) A metallic element of atomic number 78, one of the noble metals, classed with silver and gold as a precious metal,… …   The Collaborative International Dictionary of English

• Platinum black — Platinum Plat i*num, n. [NL., fr. Sp. platina, from plata silver, LL. plata a thin plate of metal. See {Plate}, and cf. {Platina}.] (Chem.) A metallic element of atomic number 78, one of the noble metals, classed with silver and gold as a… …   The Collaborative International Dictionary of English

• Platinum lamp — Platinum Plat i*num, n. [NL., fr. Sp. platina, from plata silver, LL. plata a thin plate of metal. See {Plate}, and cf. {Platina}.] (Chem.) A metallic element of atomic number 78, one of the noble metals, classed with silver and gold as a… …   The Collaborative International Dictionary of English

• Platinum metals — Platinum Plat i*num, n. [NL., fr. Sp. platina, from plata silver, LL. plata a thin plate of metal. See {Plate}, and cf. {Platina}.] (Chem.) A metallic element of atomic number 78, one of the noble metals, classed with silver and gold as a… …   The Collaborative International Dictionary of English

• Platinum sponge — Platinum Plat i*num, n. [NL., fr. Sp. platina, from plata silver, LL. plata a thin plate of metal. See {Plate}, and cf. {Platina}.] (Chem.) A metallic element of atomic number 78, one of the noble metals, classed with silver and gold as a… …   The Collaborative International Dictionary of English