| boom | 1. A long pole or spar, run out for the purpose of extending the bottom of a particular sail; as, the jib boom, the studding-sail boom, etc. 2. <mechanics> A long spar or beam, projecting from the mast of a derrick, from the outer end of which the body to be lifted is suspended. 3. A pole with a conspicuous top, set up to mark the channel in a river or harbor. 4. <astronomy> A strong chain cable, or line of spars bound together, extended across a river or the mouth of a harbor, to obstruct navigation or passage. 5. A line of connected floating timbers stretched across a river, or inclosing an area of water, to keep saw logs, etc, from floating away. Boom iron, one of the iron rings on the yards through which the studding-sail booms traverse. The booms, that space on the upper deck of a ship between the foremast and mainmast, where the boats, spare spars, etc, are stowed. Origin: D. Boom tree, pole, beam, bar. See Beam. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| boomdas | <zoology> A small African hyracoid mammal (Dendrohyrax arboreus) resembling the daman. Origin: D. Boom tree + das badger. Source: Websters Dictionary (01 Mar 1998) |
| boomer | 1. One who, or that which, booms. 2. <zoology> A North American rodent, so named because it is said to make a booming noise. See Sewellel. 3. <zoology> A large male kangaroo. 4. One who works up a "boom". Source: Websters Dictionary (01 Mar 1998) |
| boomerang | A very singular missile weapon used by the natives of Australia and in some parts of India. It is usually a curved stick of hard wood, from twenty to thirty inches in length, from two to three inches wide, and half or three quarters of an inch thick. When thrown from the hand with a quick rotary motion, it describes very remarkable curves, according to the shape of the instrument and the manner of throwing it, often moving nearly horizontally a long distance, then curving upward to a considerable height, and finally taking a retrograde direction, so as to fall near the place from which it was thrown, or even far in the rear of it. Source: Websters Dictionary (01 Mar 1998) |
| boomorah | <zoology> A small West African chevrotain (Hyaemoschus aquaticus), resembling the musk deer. Origin: Native name. Source: Websters Dictionary (01 Mar 1998) |
| boomslange | <zoology> A large South African tree snake (Bucephalus Capensis). Although considered venomous by natives, it has no poison fangs. Origin: D. Boom tree + slang snake. Source: Websters Dictionary (01 Mar 1998) |
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|---|---|---|---|
|
ºÎ¹ÍÁ¤ - »õâ
|
°ÇÀÏÁ¦¾à |
A03805371 | Bucillamine | Àü¹®ÀǾàǰ | ±Þ¿© |
| boomslang |
(boom
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
|
|---|
| boom | any of various more-or-less horizontal spars or poles used to extend the foot of a sail or for handling cargo or in mooring |
|---|---|
| boom | a pole carrying an overhead microphone projected over a film or tv set |
| boom | a deep prolonged loud noise |
| boom | a sudden happening that brings very good fortune |
| boom | a state of economic prosperity |
| boom | grow stronger |
| boom | hit hard |
| boom | make a deep hollow sound |
| boom | make a resonant sound |
| boom | be the case that thunder is being heard |
| boom | make a deep hollow sound |
| boom | a town enjoying sudden prosperity |
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|