The compound, however, lacks an ability to transform upon melting, which is not a problem for various PTFE deratives, namely FEP (fluorinated ethylene propylene, with some fluorines replaced with the-CF group) or PFA (perfluoroalkoxy, some fluorines replaced with -OCF).

Although this compound lacks activity against COX, studies have shown that this drug is a potent reducer of levels of beta amyloid, the main constituent of amyloid plaques in Alzheimer's disease, and therefore there was interest in this drug as a therapeutic agent.

Headed phrases and compounds are endocentric, whereas exocentric ("headless") phrases and compounds (if they exist) lack a clear head.

They observed that residents of the compound burned their trash, instead of putting it out for collection, and concluded that the compound lacked a phone or an Internet connection.

The compound is generally classified as a metalorganic species, meaning that its properties are strongly influenced by the organic ligands but the compound lacks metal-carbon bonds.

Although this approach, as well as related approaches, with slight modifications, has proven effective in a number of cases, these compounds lack adequate specificity for more general applications.

This is interesting since the compound lacks oxygen functionalities and phenyl groups common to other natural or synthetic estrogen compounds.

The authorities say the compound lacks the necessary sewage permits for habitation.

While Mr. Koresh was reported to have an assortment of electronic equipment and high-power weapons, the compound lacked running water and plumbing.