(a.) Of, pertaining to, or derived from, copper; containing copper; -- said of those compounds of copper in which this element is present in its highest proportion.

ADC CO Establishment German band OD Philharmonic VIP aide aide-de-camp alpenhorn alphorn althorn alto horn arch aristocracy aureate ballad horn band baritone baron barons barrow bass horn big band big gun big man big name bigwig blunt board board of directors board of regents board of trustees boodle boundary stone brashness brass band brass choir brass hat brass quintet brass section brass wind brass-wind instrument brasses brassy brazen brazen boldness bread brigadier brigadier general bronze bronzy bucks bugle bugle horn bust cabbage cabinet cadre cairn callithumpian band captain celebrity cenotaph chamber orchestra cheek chicken colonel chief of staff chips chutzpah clarion colonel column combo commandant commander commander in chief commanding officer commissioned officer company officer concert band confidence copper coppery cornet cornet-a-pistons corno di caccia cornopean council cream cromlech cross crust cup cupreous cuprous cyclolith desks dignitary dignity dinero directorate directory dixieland band do-re-mi dolmen double-bell euphonium dough effrontery elder elite ensemble establishment euphonium exec executive arm executive committee executive hierarchy executive officer face father ferrous ferruginous field marshal field officer figure first lieutenant five-star general footstone four-star general gall gamelan orchestra gelt general general officer generalissimo gilt gold gold-filled gold-plated golden governing board governing body grave gravestone grease great man green green stuff group headstone helicon heroics hoarstone horn hubris hunting horn important person improvidence imprudence impudence indiscretion infrastructure injudiciousness inscription insolence interests interlocking directorate iron ironlike jack jazz band jemadar jug band junior officer kale key trumpet lead leaden lieutenant lieutenant colonel lieutenant general lion lituus lords of creation lur magnate major major general man of mark management marechal marker marshal mausoleum mazuma megalith mellophone memento memorial memorial arch memorial column memorial statue memorial stone menhir mercurial mercurous military band mogul monolith monument moolah mopus mound nabob name necrology nerve nickel nickelic nickeline nobility notability notable obelisk obituary officer oil of palms ointment one-star general oof ooftish ophicleide orchestra orchestral horn orderly officer overboldness overcarelessness overconfidence overlapping oversureness overweeningness panjandrum person of renown personage personality pewter pewtery pillar pillar of society plaque pocket trumpet post horn power