1. atomic number 57, la, lanthanum

a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth

Synonyms

• atomic number 57
• lanthanum

2. la, louisiana, pelican state

a state in southern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War

Synonyms

• louisiana
• pelican state

3. la, lah

the syllable naming the sixth (submediant) note of a major or minor scale in solmization

Synonyms

• lah