gyp·sum 
(jĭpsəm)
(jĭpsəm)n.
A widespread colorless, white, or yellowish mineral, CaSO4·2H2O, used in the manufacture of plaster of Paris, various plaster products, and fertilizers.
[Middle English gipsum, from Latin gypsum, from Greek gupsos, probably of Semitic origin; akin to Arabic jibs, jiṣṣ, jaṣṣ, from Akkadian gaṣṣu.]
- hypericum
- hyperinflation
- hyperinflationary
- hyperinsulinemia
- hyperinsulinism
- Hyperion
- hyperirritability
- hyperirritable
- hyperkalemia
- hyperkeratosis
- hyperkeratotic
- hyperkinesia
- hyperkinesis
- hyperkinetic
- hyperlink
- hyperlipemia
- hyperlipidemia
- hypermarket
- hypermedia
- hypermeter
- hypermetric
- hypermetrical
- hypermetropia
- hypermetropic
- hypermetropical