Term: sea swallow: common tern of Eurasia and America having white black and grey plumage
Broader: tern: small slender gull having narrow wings and a forked tail | Unrelated: casuarinales: order of chiefly Australian trees and shrubs comprising the casuarinas; 1 family: Casuarinaceae
Broader: tern: small slender gull having narrow wings and a forked tail | Unrelated: mountain hollyhock: perennial of northwestern United States and western Canada resembling a hollyhock and having white or pink flowers
Broader: tern: small slender gull having narrow wings and a forked tail | Unrelated: invertase: an enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose
Broader: tern: small slender gull having narrow wings and a forked tail | Unrelated: cavern: a large cave or a large chamber in a cave
Broader: tern: small slender gull having narrow wings and a forked tail | Unrelated: strigidae: a family of nocturnal birds of the order Strigiformes
Broader: tern: small slender gull having narrow wings and a forked tail | Unrelated: voting trust: an agreement whereby persons owning stock with voting powers retain ownership while transferring the voting rights to the trustees
Broader: tern: small slender gull having narrow wings and a forked tail | Unrelated: mortarboard: an academic cap with a flat square with a tassel on top
Broader: tern: small slender gull having narrow wings and a forked tail | Unrelated: thomomys: western pocket gophers
Broader: tern: small slender gull having narrow wings and a forked tail | Unrelated: settling: a gradual sinking to a lower level
Broader: tern: small slender gull having narrow wings and a forked tail | Unrelated: electrician: a person who installs or repairs electrical or telephone lines