Bulb
[bʌlb]
Definition
(noun.) a rounded part of a cylindrical instrument (usually at one end); 'the bulb of a syringe'.
(noun.) a rounded dilation or expansion in a canal or vessel or organ.
(noun.) a modified bud consisting of a thickened globular underground stem serving as a reproductive structure.
(noun.) anything with a round shape resembling a teardrop.
Edited by Cathryn--From WordNet
Definition
(n.) A spheroidal body growing from a plant either above or below the ground (usually below), which is strictly a bud, consisting of a cluster of partially developed leaves, and producing, as it grows, a stem above, and roots below, as in the onion, tulip, etc. It differs from a corm in not being solid.
(n.) A name given to some parts that resemble in shape certain bulbous roots; as, the bulb of the aorta.
(n.) An expansion or protuberance on a stem or tube, as the bulb of a thermometer, which may be of any form, as spherical, cylindrical, curved, etc.
(v. i.) To take the shape of a bulb; to swell.
Edited by Linda
Synonyms and Synonymous
n. [1]. (Bot.) Scaly bud (like the onion and the tulip).[2]. Spherical protuberance.
Inputed by Gustav
Definition
n. an onion-like root: any protuberance or enlargement resembling such.—v.i. to form bulbs: to bulge out or swell.—adjs. Bul′bar Bulbed Bul′bous Bulbā′ceous Bulb′iform Bulbif′erous Bul′bose Bul′by.—ns. Bul′bule a little bulb: a young bulb which grows from an old one; Bul′bus a bulb.
Inputed by Erma
Examples
- The bulb was first heated and the stem placed in water. Walter Libby. An Introduction to the History of Science.
- A device for sealing together the inside part and bulb of an incandescent lamp mechanically. Frank Lewis Dyer. Edison, His Life and Inventions.
- At No. 8 is illustrated the preservation of liquid air by surrounding it with a vacuum in a Dewar bulb. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- Every time we squeeze the bulb of an atomizer, we force compressed or condensed air through the atomizer, and the condensed air pushes the liquid out of the nozzle (Fig. 51). Bertha M. Clark. General Science.
- K is the cathode plate, formed of a concave disk of aluminum, which focuses the rays at a point near the center of the bulb. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- The upper end should be slightly raised, so as to allow the mercury to rise, but the bulb and eggs should be of the same heat, as the figures record the heat in the bulb and not in the tube. William K. David. Secrets of Wise Men, Chemists and Great Physicians.
- With his assistant, Charles Bachelor, he put a thread of the lampblack and tar in a bulb, exhausted the air, and turned on the current. Rupert S. Holland. Historic Inventions.
- By squeezing the bulb, air is forced out of the nozzle. Bertha M. Clark. General Science.
- In 1631 Jean Rey just inverted this contrivance, filling the bulb with water. Walter Libby. An Introduction to the History of Science.
- After the bulb has been filled with the mercury, it is placed in a beaker of water and the water is heated by a Bunsen burner. Bertha M. Clark. General Science.
- A scratch is made on the tube to indicate the point to which the mercury rises when the bulb is placed in boiling water, and this point is marked 212°. Bertha M. Clark. General Science.
- The modern thermometer consists of a glass tube at the lower end of which is a bulb filled with mercury or colored alcohol (Fig. 8). Bertha M. Clark. General Science.
- This was invented before 1603 and consisted of a glass bulb with a long stem of the thickness of a straw . Walter Libby. An Introduction to the History of Science.
- Place the bulb of the thermometer even with the top of the eggs, that is, when the thermometer is lying down in the drawer. William K. David. Secrets of Wise Men, Chemists and Great Physicians.
- The X-Ray tube, of globular or bulb shape, is shown just above the patient’s hip, and its opposite poles are connected by wires to the opposite electrodes of the generator. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- Suppose we wish to measure the strength of the electric light bulbs in our homes, in order to see whether we are getting the specified illumination. Bertha M. Clark. General Science.
- The necks of the bulbs had been drawn out and hermetically sealed after the contents had been boiled. Walter Libby. An Introduction to the History of Science.
- It was found that in every trial the contents of a certain number of the bulbs always escaped alteration. Walter Libby. An Introduction to the History of Science.
- The flies were on the ceiling now and on the electric light bulbs that hung on wires. Ernest Hemingway. A Farewell To Arms.
- The incandescent bulbs which illuminate our buildings consist of a fine, hairlike thread inclosed in a glass bulb from which the air has been removed. Bertha M. Clark. General Science.
- To prove his contention he set out for Arbois with a large numbe r of glass bulbs each half filled with a putrescible liquid. Walter Libby. An Introduction to the History of Science.
Typed by Harley