actinide
2 synonyms for actinide, grouped by meaning and by how common each one is.
Noun — Any of a group of 15 radioactive chemical elements running from actinium to lawrencium, placed below the lanthanides in the periodic table because they share similar chemical properties.
Synonyms
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
actinon
actinoid
Etymology
Formed from actin- and -ide.
Full origin of actinide →