D defs.my
Entry 3 senses Webster, 1913

Precious

/prĕsh'-əs/ · Pre·cious · IPA /ˈpɹɛʃ.əs/
01 a. Of great price; costly; as, a precious stone.
  1. 1.
    Of great price; costly; as, a precious stone.
  2. 2.
    Of great value or worth; very valuable; highly esteemed; dear; beloved; as, precious recollections.
    “She is more precious than rules.” — Prov. iii. 15.
    “Many things which are most precious are neglected only because the value of them lieth hid.” Hooker.
  3. 3.
    Particular; fastidious; overnice; overrefined. Cf. Précieuse, Preciosity. See: Précieuse, Preciosity
    “Lest that precious folk be with me wroth.” Chaucer.
    “Elaborate embroidery of precious language.” — Saintsbury.
Phrases & compounds
Precious metals — the uncommon and highly valuable metals, esp. gold and silver.
Precious stones — gems; jewels.