D defs.my
Entry 1 sense Webster, 1913

Sierra

/sē-ĕr'-ə/ · Si·er·ra · IPA /siˈɛɹə/
01 n. A ridge of mountain and craggy rocks, with a serrated or irregular outline; as, the Sierra Nevada.
  1. 1.
    A ridge of mountain and craggy rocks, with a serrated or irregular outline; as, the Sierra Nevada.
    “The wild sierra overhead.” — Whitter.