(US, UK, idiomatic) imprisoned with little or no chance of escape; locked up. / (US, UK, idiomatic) safely guarded; locked away.

(biochemistry, genetics) a synthetic form of RNA, in which the ribose is modified to be locked into a specific conformation by adding extra chemical bonding.

Alternative form of landlocked salmon

(archaic) A lock with duplicate faces so that the key can enter on either side and the lock can be mounted on either a right-hand or a left-hand door.

plural of locked nucleic acid

plural of phase-locked loop

plural of locked rotor amp

A thixotropic liquid applied to screw threads that keeps them from loosening.

plural of thread-locking fluid

plural of Janus-faced lock