homing device, spotting, zeroing, sensing, infrared, olfaction, honing, heterodyne, vectoring, laser beam, tracking, plasmatic, zapping, bioluminescent, prowl, diffracting, sensor, latching, stealthiness, cloaking, neural, luciferin, effectors, columba livia, chemotactic, airbourne, transducing, neurone, detection, hypervelocity, transmitters, comint, echolocation, focussing, torpedos, pineal, beacons, hedgehog, dedifferentiation, proliferating, nucleoli, antennae, signaler, treeing, reticule, subthalamic nucleus, stealth, mantis shrimp, annelids, repeller, chemotaxis, inertial navigation, dpp, neuron, priming, blindspot, micromanipulator, foraging, radars, transduction, metazoans, cingulate, spectral, strafes, inertial guidance, sectored, laser, astrometry, anting, birdcall, magnetic compass, microelectrode, cva, rove, polarimetry, alpha particle, wayward, phagocytosis, eyespots, spectrometric, tribolium, housefly, sensory neuron, tiger moth, activating, wavelength, neuro, luciferase, deciphering, amplifying, positioning, misfiring, perfecting, correctors, sniffer, photocell, waveband, retroreflector, notochord, morphogen, cherenkov radiation, pinging, replication, signalling, cloning, docking, naming, readout, sending, splicing, vaccination, initiation, mitosis, synthesis, transcription, uptake, coding, decoding, glycosylation, decoy, calorimetric, dividing, modulating, releasing, scan, antigen, cycling, dr, located, mitogenic, nuclear, photoconductive, photoelectric, potentiometric, sealing, tagged, transfected

carrier pigeon, guided missile, sidewinder

orientating, orienting