MeSH Browser

MeSH Heading: Metals, Rare Earth
Tree Number(s): D01.268.558; D01.552.550
Unique ID: D008674
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D008674
Annotation: general or unspecified; prefer specifics
Scope Note: A group of elements that include SCANDIUM; YTTRIUM; and the LANTHANOID SERIES ELEMENTS. Historically, the rare earth metals got their name from the fact that they were never found in their pure elemental form, but as an oxide. In addition, they were very difficult to purify. They are not truly rare and comprise about 25% of the metals in the earth's crust.
Entry Term(s): Rare Earth Metal; Rare Earth Metals
Previous Indexing: Metals (1966-1975)
Public MeSH Note: 76
History Note: 76; was NON MESH before 1976
Date Established: 1976/01/01
Date of Entry: 1975/07/23
Revision Date: 2021/06/30

Allowable Qualifiers: administration & dosage (AD)

adverse effects (AE)

agonists (AG)

analysis (AN)

antagonists & inhibitors (AI)

blood (BL)

cerebrospinal fluid (CF)

chemical synthesis (CS)

chemistry (CH)

classification (CL)

economics (EC)

history (HI)

immunology (IM)

isolation & purification (IP)

metabolism (ME)

pharmacokinetics (PK)

pharmacology (PD)

poisoning (PO)

radiation effects (RE)

standards (ST)

supply & distribution (SD)

therapeutic use (TU)

toxicity (TO)

urine (UR)

Metals, Rare Earth MeSH Descriptor Data 2025