Controlled Terminology Explorer
Standardized canonical terms mapped to synonyms, typos, translations, and third-party taxonomies (NUFORC, MUFON, AARO). Search and filtering resolve to these canonical nodes.
Elliptical
An elongated circular or oval planform approximating an ellipse.
Disc
A flat or domed circular craft resembling a saucer or coin.
Triangle
A three-sided planar or wedge-shaped craft with distinct acute corners.
Cigar
An elongated cylindrical object with rounded or blunt ends.
Humanoid
An entity having a human-like head, torso, two arms, and two legs.
Grey
Humanoid entity with large hairless head, dark almond eyes, slender limbs, and gray skin.
Small Grey
Grey entity subtype typically standing under 1.4 meters with large head and minimal facial features.
Tall Grey
Grey entity subtype standing 2.0 to 2.5 meters tall, often reported in authority roles.
Silent
Completely devoid of audible sound emissions or engine noise.
Humming
A low-frequency continuous resonant sound or vibration.
Hovering
Stationary position maintained in mid-air without visible propulsion or aerodynamic lift surfaces.