Definition of Negative crystal

1. Noun. (optics) A uniaxial crystal, such as one of calcite, in which the extraordinary wave travels faster than the ordinary wave ¹

2. Noun. A crystal that contains a cavity ¹

¹ Source: wiktionary.com

Medical Definition of Negative crystal

1. A uniaxial crystal is optically negative if epsilon is less than omega A biaxial crystal is said to be optically negative if gamma minus beta is less than beta is less than beta minus alpha. Otherwise the crystal is positive. (05 Aug 1998)

Lexicographical Neighbors of Negative Crystal

negative G
negative Nancy
negative S
negative accommodation
negative afterimage
negative anergy
negative base excess
negative binomial distribution
negative charge
negative chemotaxis
negative clause
negative control
negative convergence
negative cooperativity
negative correlation
negative crystal (current term)
negative cutter
negative edge
negative edge-triggered
negative edges
negative electrode
negative electrotaxis
negative end-expiratory pressure
negative equity
negative eyepiece
negative feedback
negative feedback circuit
negative focal length
negative growth
negative ice

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