adj.
1.prescribed by or according to regulation regulation n.
1.an authoritative rule
2.a principle or condition that customarily governs behavior
3.the state of being controlled or governed
4.(embryology) the ability of an early embryo to continue normal development after its structure has been somehow damaged or altered
5.the act of bringing to uniformity
6.the act of controlling or directing according to rule
Idiom of the Day
rivet (someone's) attention
to keep someone's attention fixed on something
The man riveted our attention as he continued to climb up the side of the tall building.