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1. Mountaineering any of various devices such as piton or nut when used as a direct help in the ascent
2. (in medieval Europe; in England after 1066) a feudal payment made to the king or any lord by his vassals, usually on certain occasions such as the marriage of a daughter or the knighting of an eldest son


References in periodicals archive ?
Electronic Travel Aids are classified as follows: obstacle detectors based on ultrasonic and laser beams emission into the environment in order to calculate the distance between the subject and the detected object, navigation systems with the purpose of acknowledging information about the setting and position of the subject in local or global coordinate system of the scenery and environmental sensors.
The Guide-Cane--A computerized travel aid for the active guidance of blind pedestrians.
Users, who do not know the Japanese language, can communicate in Japanese by using this designed travel aid app.
In 2000, GPSTalk, the first electronic travel aid aimed at navigation, became commercially available (May & LaPierre, 2007).
com/indianocean) has kick-started the return to the Maldives with a peak winter sun discount of pounds 220 per person, plus a pounds 10 donation to the Travel Aid 50 fund for every February booking.
The individualized instruction might include use of functional vision, sensory training, concept development, electronic travel aid usage, low- vision optical and non-optical device training, pre-cane and cane instruction for indoor and outdoor travel, and specialized travel needs related to urban, rural, and inclement weather environments.
We therefore recommend that an electronic travel aid should offer all available output options, including a complete description of the route in advance (as in the desk information), instead of defining a specific user profile for each user group.
FOREIGN tourists now have a travel aid that they can really swear by - a guide to Britons' flipping foul language.
The GuideCane--A computerized travel aid for the active guidance of blind pedestrians.

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