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symbol for the element samariumsamarium
, metallic chemical element; symbol Sm; at. no. 62; at. wt. 150.36; m.p. 1,072°C;; b.p. 1,791°C;; sp. gr. 7.54 at 20°C;; valence +2 or +3. Samarium is a lustrous silver-white metal.
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1. Abbr. for “standard matched.”
2. Abbr. for surface measure.


The country code for San Marino.
References in periodicals archive ?
The improvements are based on appropriate adaptations of the SR1 method and the S-M formula to the characteristic structure of underlying matrices of type Tpl ({[t.sub.1]}, {[t.sub.1], ..., [t.sub.l]}).
In this paper, we investigate some alternative methods for computing [H.sup.[dagger]] using the SR1 updates and the S-M formula.
S is an elderly man, and both he and S-M relied reasonably on their longtime accounting firm to prepare their tax returns correctly.