16-letter words containing r, i, b, t, c, k
- back-propagation — (Or "backpropagation") A learning algorithm for modifying a feed-forward neural network which minimises a continuous "error function" or "objective function." Back-propagation is a "gradient descent" method of training in that it uses gradient information to modify the network weights to decrease the value of the error function on subsequent tests of the inputs. Other gradient-based methods from numerical analysis can be used to train networks more efficiently. Back-propagation makes use of a mathematical trick when the network is simulated on a digital computer, yielding in just two traversals of the network (once forward, and once back) both the difference between the desired and actual output, and the derivatives of this difference with respect to the connection weights.
- back-seat driver — If you refer to a passenger in a car as a back-seat driver, they annoy you because they constantly give you advice.
- bacterial canker — a disease of plants, characterized by cankers and usually by exudation of gum, caused by bacteria, as of the genera Pseudomonas and Corynebacterium.
- bacterioplankton — (biology) The bacterial component of marine plankton.
- badminton racket — the type of racket used in games of badminton
- birchbark biting — a Native Canadian craft in which designs are bitten onto bark from birch trees
- black-light trap — a trap for insects that uses ultraviolet light as an attractant.
- blacktailed deer — a mule deer, esp. the subspecies (Odocoileus hemionus columbianus) found from N Calif. to British Columbia
- blink comparator — an optical instrument used to detect small differences in two photographs of the same field or object by viewing them alternately, switching rapidly from one to the other.
- braking distance — the distance a vehicle travels from the point at which its brakes are applied to the point at which it comes to a stop
- brick-and-mortar — pertaining to conventional stores, businesses, etc., having physical buildings and facilities, as opposed to Internet or remote services.
- broomstick skirt — a full, gathered or pleated skirt that has characteristic tiny creases obtained by wetting the skirt and winding it around a broomstick to dry.
- buckthorn family — the plant family Rhamnaceae, characterized by shrubs and trees having alternate, simple leaves, clusters of small flowers, and fruit in the form of a drupe or capsule, and including the buckthorn, cascara, and New Jersey tea.
- cassia-bark tree — a lauraceous tree, Cinnamomum cassia, of eastern Asia.
- chiclet keyboard — (hardware, abuse) A keyboard with a small, flat rectangular or lozenge-shaped rubber or plastic keys that look like pieces of Chiclets chewing gum. Used especially to describe the original IBM PCjr keyboard. Vendors unanimously liked these because they were cheap, and a lot of early portable and laptop computers were launched with them. Customers rejected the idea with almost equal unanimity, and chiclets are not often seen on anything larger than a digital watch any more.
- cooperative bank — a cooperative savings institution, chartered and regulated by a state or the federal government, that receives deposits in exchange for shares of ownership and invests its funds chiefly in loans secured by first mortgages on homes.
- electric blanket — electrically-heated bedcover
- embarkation card — an official document that allows travellers to leave a country by boarding a ship or plane
- hit a brick wall — unable to continue or make progress because of a hindrance
- lick observatory — the astronomical observatory of the University of California, situated on Mount Hamilton, near San Jose, California, and having a 120-inch (3-meter) reflecting telescope and a 36-inch (91-cm) refracting telescope.
- lumberjack shirt — a thick checked shirt, as worn by lumberjacks
- megakaryoblastic — (cytology) Of or pertaining to a megakaryoblast.
- observation deck — an area on a high building that is surrounded with railings or fencing and which provides panoramic views
- pocket billiards — pool2 (def 1).
- security blanket — a blanket or other familiar item carried especially by a young child to provide reassurance and a feeling of psychological security.
- strike a balance — compromise
- to break the ice — If you break the ice at a party or meeting, or in a new situation, you say or do something to make people feel relaxed and comfortable.
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