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: H HÜ Hæ Hô H- H. H2 H< Ha Hb Hc Hd He Hf Hg Hh Hi Hl Hm Hn Ho Hp Hq Hr Hs Ht Hu Hw Hy Hz

Table of Contents POS
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY

holmium

POS

Noun

HYPHEN

hol=mi=um

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WORDNET DICTIONARY

Noun holmium has 1 sense

holmium(n = noun.substance) atomic number 67, ho - a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds; Array

is a kind of metal, metallic element

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CIDE DICTIONARY

holmium, n. [NL., from Stockholm.].

A rare element of atomic number 67 said to be contained in gadolinite. Chemical symbol Ho. Atomic weight 164.93. Valence +3. It was detected by spectral absorption bands in 1878 by the Delafontaine and Soret, who called it "Element X". Later the Swedish chemist Cleve independently discovered it in erbia, and named it after his native city Stockholm. The first preparation of pure Holmia, the yellow oxide, was not made until 1911. [1913 Webster]

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OXFORD DICTIONARY

holmium, n. Chem. a soft silvery metallic element of the lanthanide series occurring naturally in apatite.

Usage

Symb.: Ho.

Etymology

mod.L f. Holmia Stockholm

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