incus

[ing-kuh s]

noun, plural in·cu·des [in-kyoo-deez] /ɪnˈkyu diz/ for 1; in·cus for 2.

Anatomy. the middle one of a chain of three small bones in the middle ear of humans and other mammals.Compare malleus, stapes.

Also called anvil, anvil cloud, anvil top, thunderhead. the spreading, anvil-shaped, upper portion of a mature cumulonimbus cloud, smooth or slightly fibrous in appearance.

Origin of incus

1660–70; < New Latin, Latin incūs anvil, equivalent to incūd- (stem of incūdere to hammer, beat upon) + -s nominative singular ending; see incuse

Related formsin·cu·date

[ing-kyuh-deyt, -dit, in-] /ˈɪŋ kyəˌdeɪt, -dɪt, ˈɪn-/, in·cu·dal

[ing-kyuh-dl, in-] /ˈɪŋ kyə dl, ˈɪn-/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for incus

Historical Examples of incus

The stapes forms a close connection with the hammer and the incus.
Form and Function
E. S. (Edward Stuart) Russell
The short limb of the incus is broad at the base and tapers distally.
North American Jumping Mice (Genus Zapus)
Philip H. Krutzsch
The long limb of the incus is angular and longer than that of Zapus.
North American Jumping Mice (Genus Zapus)
Philip H. Krutzsch
The incus, or anvil-bone, may be formed from part of Meckel's cartilage.
A Guide to the Study of Fishes, Volume 1 (of 2)
David Starr Jordan
The incus is articulated, or often fused, with an outgrowth from the head of the malleus.
The Vertebrate Skeleton
Sidney H. Reynolds

British Dictionary definitions for incus

incus

noun plural incudes (ɪnˈkjuːdiːz)

the central of the three small bones in the middle ear of mammalsNontechnical name: anvil Compare malleus, stapes

Derived Formsincudate (ˈɪŋkjʊˌdeɪt) or incudal (ˈɪŋkjʊdəl), adjective

Word Origin for incus

C17: from Latin: anvil, from incūdere to forge

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for incus

ear bone, 1660s, from Latin incus "anvil," from incudere "to forge with a hammer." So called by Belgian anatomist Andreas Vesalius (1514-1564).

incus in Medicine

incus

[ĭng′kəs]

n. pl. in•cu•des (ĭng-kyōō′dēz)

The middle of the three ossicles in the middle ear, located between the malleus and the stapes and composed of a body and two limbs.anvil

incus in Science

incus

[ĭng-kyōō′dēz]

Plural incudes (ĭng-kyōō′dēz)

The anvil-shaped bone (ossicle) that lies between the malleus and the stapes in the middle ear.

The elongated, often anvil-shaped upper portion of a fully developed cumulonimbus cloud; a thunderhead.