Term: periscope: an optical instrument that provides a view of an otherwise obstructed field
Broader: optical instrument: an instrument designed to aid vision | Unrelated: kid: young goat
Broader: optical instrument: an instrument designed to aid vision | Unrelated: home page: the opening page of a web site
Broader: optical instrument: an instrument designed to aid vision | Unrelated: soft palate: a muscular flap that closes off the nasopharynx during swallowing or speaking
Broader: optical instrument: an instrument designed to aid vision | Unrelated: bacteria genus: a genus of bacteria
Broader: optical instrument: an instrument designed to aid vision | Unrelated: antagonism: an actively expressed feeling of dislike and hostility
Broader: optical instrument: an instrument designed to aid vision | Unrelated: drinking fountain: a public fountain to provide a jet of drinking water
Broader: optical instrument: an instrument designed to aid vision | Unrelated: covariation: (statistics) correlated variation
Broader: optical instrument: an instrument designed to aid vision | Unrelated: brasserie: a small restaurant serving beer and wine as well as food; usually cheap
Broader: optical instrument: an instrument designed to aid vision | Unrelated: woodwardia: in some classification systems placed in family Polypodiaceae: chain ferns
Broader: optical instrument: an instrument designed to aid vision | Unrelated: implement: instrumentation (a piece of equipment or tool) used to effect an end