All 6 Uses

receptive
in
The Hunt for Red October
(Auto-generated)

Throughout the oceans of the world, and especially astride the passages that Soviet submarines had to cross to reach the open sea, the United States and other NATO countries had deployed gangs of highly sensitive sonar receptors.†
Chpt 4. *
The SOSUS sensors were designed to give bearing checks through the selective use of individual receptors, which he could manipulate electronically, first getting one bearing, then using a neighboring gang to triangulate for a fix.†
Chpt 4.
The SOSUS receptors were principally laid at shallow-water choke points, on the bottom of undersea ridges and highlands.†
Chpt 10.
Its on-board programming was designed to trace thermal receptors over the entire visible horizon, interrogating everything in sight and locking on any signature that fit its acquisition parameters.†
Chpt 16.
The BQQ-5's sensitive receptors revealed nothing, even after the SAPS system had been used.†
Chpt 17.
Slowly and carefully, he altered the directional receptor gangs in the sonar dome forward, his right hand twirling a cigarette pack, his eyes shut tight.†
Chpt 17.

Definitions:

(1) (receptive)
open to arguments, ideas, or change
(2) (meaning too rare to warrant focus)
More rarely, receptive can mean that something is capable of receiving something else. In that instance, the thing that receives might be called a receptor as when referring to a molecule that receives and responds to a neurotransmitter.