rarer

adj.

更稀罕的，更珍贵的(rare的最高级)；罕见的( rare的比较级 )；极好的；稀薄的肉半熟的；

Rarer Than a Blue Moon The use of a diagnostic code for the metabolic syndrome in the U.S.
‘Why polyploidy is rarer in animals than in plants’: myths and mechanisms
‘Why polyploidy is rarer in animals than in plants’: myths and mechanisms
Overview of the Cohort Consortium Vitamin D Pooling Project of Rarer Cancers.
Correlates of Circulating 25-Hydroxyvitamin D: Cohort Consortium Vitamin D Pooling Project of Rarer Cancers
Circulating 25-Hydroxyvitamin D and Risk of Kidney CancerCohort Consortium Vitamin D Pooling Project of Rarer Cancers
Circulating 25-Hydroxyvitamin D and Risk of Pancreatic Cancer: Cohort Consortium Vitamin D Pooling Project of Rarer Cancers
Circulating 25-hydroxyvitamin D and risk of non-hodgkin lymphoma: Cohort Consortium Vitamin D Pooling Project of Rarer Cancers.
Circulating 25-Hydroxyvitamin D and Risk of Epithelial Ovarian Cancer: Cohort Consortium Vitamin D Pooling Project of Rarer Cancers
Circulating 25-hydroxyvitamin D and risk of esophageal and gastric cancer: Cohort Consortium Vitamin D Pooling Project of Rarer Canc...