(zoology) Of or pertaining to the Ophidiidae, a family of fishes.

(zoology) Any primitive mammal in the family Ptilodontidae.

(electronics) A flat board that holds chips and other electronic components in layers that interconnect via copper pathways, often called traces.

The Irish state under the English monarchs from its creation during the reign of King Henry VIII of England when he elevated Ireland from a lordship to a kingdom, to its abolition in 1801 under Kin...