peeneraline nikkel, mis on eraldatud alumiiniumi ja nikli sulamist; vesiniku tootmisel jt valdkondades kasutatav katalüsaatormaterjal (vt nikkel), a fine-grained nickel based solid composed mostly of nickel derived from nickel-aluminium alloy and used as a reagent and as a catalist e.g. in organic chemistry (see: nickel)