Part 318

All cobbing country chuffs, which make their bellies and their bags their god, are called rich cobs. Nash.

3. The axis on which the kernels of maize or indian corn grow. [U. S.]

4. (Zo÷l.) A spider; perhaps from its shape; it being round like a head.

5. (Zo÷l.) A young herring. B. Jonson.

6. (Zo÷l.) A fish; -- also called miller's thumb.

7. A short-legged and stout horse, esp. one used for the saddle. [Eng.]

8. (Zo÷l.) A sea mew or gull; esp., the black-backed gull (Larus marinus). [Written also cobb.]

9. A lump or piece of anything, usually of a somewhat large size, as of coal, or stone.

10. A cobnut; as, Kentish cobs. See Cobnut. [Eng.]

11. Clay mixed with straw. [Prov. Eng.]

The poor cottager contenteth himself with cob for his walls, and thatch for his covering. R. Carew.

12. A punishment consisting of blows inflicted on the buttocks with a strap or a flat piece of wood. Wright.

13. A Spanish coin formerly current in Ireland, worth abiut 4s. 6d. [Obs.] Wright.

Cob coal, coal in rounded lumps from the size of an egg to that of a football; -- called also cobbles. Grose. -- Cob loaf, a crusty, uneven loaf, rounded at top. Wright. -- Cob money, a kind of rudely coined gold and silver money of Spanish South America in the eighteenth century. The coins were of the weight of the piece of eight, or one of its aliquot parts.

Cob, v. t. [imp. & p. p. Cobbed (?); p. pr. & vb. n. Cobbing.] 1. To strike [Prov. Eng.] Halliwell.

2. (Mining) To break into small pieces, as ore, so as to sort out its better portions. Raymond.

3. (Naut.) To punish by striking on the buttocks with a strap, a flat piece of wood, or the like.

Co*bŠ"a (k&osl;*bē"&adot;), n. [Named after D. Cobo, a Spanish botanist.] A genus of climbing plants, native of Mexico and South America. C. scandens is a conservatory climber with large bell-shaped flowers.

Co"balt (kō"b&obreve;lt; 277, 74), n. [G. kobalt, prob. fr. kobold, kobel, goblin, MHG. kobolt; perh. akin to G. koben pigsty, hut, AS. cofa room, cofgodas household gods, Icel. kofi hut. If so, the ending - old stands for older -walt, -wald, being the same as -ald in E. herald and the word would mean ruler or governor in a house, house spirit, the metal being so called by miners, because it was poisonous and troublesome. Cf. Kobold, Cove, Goblin.] 1. (Chem.) A tough, lustrous, reddish white metal of the iron group, not easily fusible, and somewhat magnetic. Atomic weight 59.1. Symbol Co.

&fist; It occurs in nature in combination with arsenic, sulphur, and oxygen, and is obtained from its ores, smaltite, cobaltite, asbolite, etc. Its oxide colors glass or any flux, as borax, a fine blue, and is used in the manufacture of smalt. It is frequently associated with nickel, and both are characteristic ingredients of meteoric iron.

2. A commercial name of a crude arsenic used as fly poison.

Cobalt bloom. Same as Erythrite. -- Cobalt blue, a dark blue pigment consisting of some salt of cobalt, as the phosphate, ignited with alumina; -- called also cobalt ultramarine, and Thenard's blue. -- Cobalt crust, earthy arseniate of cobalt. -- Cobalt glance. (Min.) See Cobaltite. -- Cobalt green, a pigment consisting essentially of the oxides of cobalt and zinc; -- called also Rinman's green. -- Cobalt yellow (Chem.), a yellow crystalline powder, regarded as a double nitrite of cobalt and potassium.

Co*balt"ic (?; 74), a. [Cf. F. cobaltique.] (Chem.) Pertaining to, derived from, or containing, cobalt; -- said especially of those compounds in which cobalt has higher valence; as, cobaltic oxide.

Luteo-cobaltic compounds (Chem.), an extensive series of complex yellow compounds of ammonia and cobaltic salts. -- Roseo-cobaltic compounds (Chem.), an extensive series of complex red compounds of cobalt and ammonia. Modifications of these are the purpureo-cobaltic compounds.

Co`balt*if"er*ous (?), a. [Cobalt + -ferous.] (Min.) Containing cobalt.

{ Co"balt*ine (?), Co"balt*ite (?) } n. (Min.) A mineral of a nearly silver-white color, composed of arsenic, sulphur, and cobalt.

Co*balt"ous (?), a. (Chem.) Pertaining to, derived from, or containing, cobalt; -- said esp. of cobalt compounds in which the metal has its lower valence.

Cobaltous chloride, a crystalline compound, CoCl2, of a pale rose color when hydrous, blue when dehydrated. Its solution is used for a sympathetic ink, the writing being nearly colorless when dried in the air, owing to absorbed moisture, and becoming bright blue when warmed.