andha mūṣā

 In Sanskrit, andhamūṣā means a closed crucible—a sealed vessel used in alchemical and Ayurvedic metallurgical processes.

Core meaning

The term andhamūṣā (अन्धमूषा) is defined as “a small covered crucible with a hole in the side”

Wisdom Library

.
It is a compound of andha (“closed, blind”) and mūṣā (“crucible”).

Technical meaning in Ayurveda / Rasaśāstra

In classical alchemical literature, andhamūṣā refers specifically to a closed crucible used in heating, smelting, and preparing herbo‑mineral medicines

Wisdom Library

.
Key points from the source:

• It is one of the two main types of crucibles (mūṣā):
  • prakāśa‑mūṣā — open crucible
  • andha‑mūṣā / mūka‑mūṣā — closed crucible

    1
• Used when ingredients must not be exposed to air or when volatile components must be contained

  1

  .
• Described as deep, covered, with a single hole (sometimes compared to the shape of a cow’s udder)

  1

  .
• 

  1 Source

Etymology

• andha — “closed, blind, shut”
• mūṣā — “crucible”
  Together: “a blind/closed crucible.”

Summary

If you encounter andha mūṣā in Sanskrit texts—especially Ayurvedic or alchemical ones—it means a sealed crucible used for controlled heating.