(uncountable) A state of suspicious guarding towards a spouse, lover etc., from fears of infidelity. / (countable) A resentment towards someone for a perceived advantage or superiority they hold.

plural of pectinase

Pertaining to, exhibiting, or in accordance with ethnoracialism.

(astronomy) a ring of dust, moonlets and other matter that orbits a planet (such as Saturn) as a flat disc; gaps in the ring are due to the presence of shepherd moons