A thing with three components; a set of three things.
Any of various seabirds of the subfamily Sternidae (of the family Laridae) that are similar to gulls but are smaller and have a forked tail.
Consisting of three components; ternate, threefold, triple.
Synonym of terneplate (“thin iron or steel sheeting coated with this alloy”)
An alloy coating made of lead and tin (or, more recently, zinc and tin), often with some antimony, used to cover iron or steel.
Colourless, drab, dull.