sentinel Definition

sentry, lookout, watch, scout, picket, lookout man, indicator, monitoring, vigilance, watchman, surveillance, witness, guard, custodian, ceremonial, oversight, keeper, killing, control, witnesses, controlled, fixed-point, locational, stand watch, guerite, outsentry, guardian, arbovirus, cocci, stand guard, borrelia, fall webworm, heath, phalaropes, lookouts, exclosure, arboviruses, nidus, morepork, sentry box, leafminer, vesper sparrow, hilar, phoebe, kittiwake, emergences, factionary, treponema, tanager, mortality, blue jay, promontory, forest tent caterpillar, babesia, ixodes scapularis, murrelet, marsh wren, great blue heron, chimney swift, aeries, pneumocystis, port orford cedar, protector, hemorrhagic septicemia, kauri, vivax, subalpine fir, flagstaff, nighthawk, bougainvillaea, aspergillosis, shadbush, collembola, nevus, caracara, kea, ixodes, chough, histopathology, timekeeper, mud dauber, outguard, blastomycosis, perches, palisades, tent caterpillar, dutch elm, limber pine, mopane, milk vetch, squires, periodical cicada, waterbird, c. trachomatis, spotters, mastoiditis, parasitaemia, pine warbler, proboscis monkey, grenadier,