[plat-n-oh-tahyp] /ˈplæt n oʊˌtaɪp/
a process of printing positives in which a salt is used, rather than the usual silver salts, in order to make a more permanent print.
Also called platinum print. a print made by this process.
an obsolete process for producing photographic prints using paper coated with an emulsion containing platinum salts, the resulting image in platinum black being more permanent and of a richer tone than the usual silver image
[plat-n-oh-sahy-uh-nahyd, -nid] /ˌplæt n oʊˈsaɪ əˌnaɪd, -nɪd/ noun, Chemistry. 1. a salt of platinocyanic acid. /ˌplætɪnəʊˈsaɪəˌnaɪd; -nɪd/ noun 1. any salt containing the divalent complex cation [Pt(CN)4]2–
- Play footsie
noun 1. Behave coyly, flirt with, especially secretly. For example, Get to the point, there’s no need to play footsie with us. This expression alludes to two persons surreptitiously rubbing each other’s feet together. [ 1940s ] 2. Cooperate or curry favor with in a sly or secret way, as in The mayor’s been playing […]
- Play for
1. Take part for a particular reason, as in We’re not playing for money, just for fun. A special usage of this idiom is play for laughs, that is, with the aim of arousing laughter. 2. play someone for. Manage someone for one’s own ends, make a fool of, dupe or cheat. For example, I […]
- Play for keeps
verb phrase To be intent and serious to the point of callousness; play hardball: We’re out here man for man and playin’ for keeps [1861+; fr the game of marbles and other children’s games where the tokens may be either returned or kept by the winner] see: for keeps