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Concave   /kɑnkˈeɪv/  /kˈɑnkeɪv/   Listen
adjective
Concave  adj.  
1.
Hollow and curved or rounded; vaulted; said of the interior of a curved surface or line, as of the curve of the of the inner surface of an eggshell, in opposition to convex; as, a concave mirror; the concave arch of the sky.
2.
Hollow; void of contents. (R.) "As concave... as a worm-eaten nut."


noun
Concave  n.  
1.
A hollow; an arched vault; a cavity; a recess. "Up to the fiery concave towering hight."
2.
(Mech.) A curved sheath or breasting for a revolving cylinder or roll.


verb
Concave  v. t.  (past & past part. concaved; pres. part. concaving)  To make hollow or concave.





Collaborative International Dictionary of English 0.48


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"Concave" Quotes from Famous Books



... is concave or convex according to the side from which you look at it. From one it swells out into rounded fullness; from the other it gapes as in empty hungriness. So the rich fool of the preceding parable and the anxious, troubled man of ...
— Expositions Of Holy Scripture - Volume I: St. Luke, Chaps. I to XII • Alexander Maclaren
... find the African mind differing from ours as widely as a picture seen directly with the eyes differs from one reflected in a concave mirror. This is vividly illustrated by a quaint story recorded in the Folk Tales of Angola (Memoirs of Amer. Folk Lore Soc., Vol. I., 1804, 235-39), of which the following is a ...
— Primitive Love and Love-Stories • Henry Theophilus Finck
... orb was next displayed; Tremendous Gorgon frowned upon its field, And circling terrors filled the expressive shield. Within its concave hung a silver thong, On which a mimic serpent creeps along, His azure length in easy waves extends, Till, in three heads, th' embroidered monster ends." See Pope's "Homer's Iliad," book xi., 1. 43. Lucian here means to ridicule, not Homer, but ...
— Trips to the Moon • Lucian
... parts referred to in the key may be defined as follows: Anal fin, the single fin on the median line of the body, between the vent and the tail; gillrakers, bony protuberances on the concave side of the bones supporting the gills; branchiostegals, small bones supporting the lower margin of the gill cover; pyloric coeca, worm-like appendages of the lower end of the stomach; vomer, a bone in the front part of the ...
— The Salmon Fishery of Penobscot Bay and River in 1895-96 • Hugh M. Smith
... and the teeth will have hollows of a very dark brown colour. At six years old the grooves and hollows in a horse's mouth will begin to fill up a little and their tusks have their full growth, with their points sharp, and a little concave. At seven years old the grooves and hollows will be pretty well filled below. At eight the whole of the hollows and groves are filled up, and you see the appearance of what is termed smooth below. At nine years old, the point of the tusk is worn off, and the part that ...
— Young's Demonstrative Translation of Scientific Secrets • Daniel Young


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