inclusions
Synonyms
Examples
Among these outcrops 20 have yielded biological inclusions comprising the oldest representatives of several recent families of terrestrial arthropods.
After color follows clarity: similar to diamonds, a clear stone will command a premium, but a ruby without any needle-like rutile inclusions may indicate that the stone has been treated.
All natural rubies have imperfections in them, including color impurities and inclusions of rutile needles known as "silk".
A metal-matrix composite with discrete inclusions of low-melting material is another option; the inclusions either melt before the jet reaches the well casing, weakening the material, or serve as crack nucleation sites, and the slug breaks up on impact.
American Express doesn’t have explicit epidemic inclusions (or exclusions), but cardholders might have luck claiming reimbursement by getting a doctor’s note stating that “a covered trip is medically inadvisable.”
A gem graded none on the enhancement scale may still exhibit visible inclusions.