A main girder consists of an upper and lower flange, boom or chord and a vertical web.
Each boom of thunder was loud enough to rattle the window panes.
The door closed with an ominous boom that echoed throughout what sounded like a massive but empty chamber.
You may often detect a yet smoother and darker water, separated from the rest as if by an invisible cobweb, boom of the water nymphs, resting on it.
Clinton met with little difficulty from the principal American defences of the Highlands, consisting of Forts Montgomery and Clinton on the western bank, together with a huge chain and boom stretched across the river to a precipitous mountain (Anthony's Nose) on the opposite bank, and ascended as far as Esopus (now Kingston) which he burned, but he was too late to aid Burgoyne.
Several men and vessels were lost in crossing the bar; but by noon on the 26th of February the bridge of 26 vessels had been thrown and secured; batteries and a boom placed to protect it, 8000 troops passed over, and the enemy's gunboats driven up the river.
In the midst of this consternation, Queequeg dropped deftly to his knees, and crawling under the path of the boom, whipped hold of a rope, secured one end to the bulwarks, and then flinging the other like a lasso, caught it round the boom as it swept over his head, and at the next jerk, the spar was that way trapped, and all was safe.
With this arrangement of crossed slits a spot of light impinges on the photographic surface and, when the boom is steady, gives a sharp fine line.
There was time for quiet evenings, some jazz and classical music in the Dean's quarters, country and western in Fred's and some totally incomprehensible noise from the small room where Martha Boyd and her boom box now dwelt.
In loud sounds, such as a peal of thunder from a near flash, or the report of a gun, the effect may be considerable, and the rumble of the thunder and the prolonged boom of the gun may perhaps be in part due to the breakdown of the wave when the crest of maximum pressure has moved up to the front, though it is probably due in part also to echo from the surfaces of heterogeneous masses of air.