crystal form


Also found in: Dictionary, Wikipedia.

crystal form

[¦krist·əl ′fȯrm]
(crystallography)
A collection of crystal faces generated by operating on a single face with a subgroup of the symmetry elements of the crystal class.
References in periodicals archive ?
It has been suggested that the origin of the crystal metastability comes from the existence of metastable crystal forms (4, 7-9) as well as thin lamellae and defects in the crystals (2, 4).
The research titled "High Throughput Survey of Crystal Form Diversity of Highly Polymorphic Pharmaceutical Compounds", will appear in Crystal Growth and Design in November/December 2003 and "Salt Selection and Simultaneous Polymorphism Assessment via High-Throughput Crystallization: The Case of Sertraline", appears in the November 2003 issue of Organic Process Research and Development.
We intend to accomplish that goal both through an ongoing strategy of patent filing and prosecution and, as in the case of our new crystal form of HE2000, through scientific efforts yielding new entities that can be patented.
today announced significant research findings that identify new crystal forms of the HIV protease inhibitor, Ritonavir (Norvir(R)).
TransForm's discovery of the Form III, when viewed in the context of my laboratory's polymorph predictions, demonstrate that high throughput crystallization experiments are essential to crystal structure predictions," stated Professor Sally Price, distinguished professor of chemistry at University College London and a leading authority in the field of crystal form prediction.
Cocoa butter, the yellow-white fat made from cacao beans, comes in several different crystal forms.
The diamonds are octahedron or dodecahedron in crystal form and are clear white in colour.
When not in crystal form, the polymerase would normally extend the shorter of the two strands by adding nucleotides that complement the ones on the longer strand.
Does rapidly cooling a liquid to form a glass produce the same kind of disorder as that produced by bombarding the crystal form of the same substance with ions?
Tenders are invited for Ammonia Alum Pure Crystal Form To Is:259/1969 Ammendment No.
It is well known that the [beta]-modification is a metastable crystal form and it can only obtained through special annealing procedures [6], nucleating agent (NA) addition [7], and shearing field application [8], The specific NAs have shown advantages in the industrial field, and they have been successfully introduced into iPP for reducing the size of spherulitic entities, which improves the mechanical, surface, and optical properties of iPP related materials [7].
But his home was then searched and three pots containing GHB in solid crystal form were found in a drawer.