middle rib

Meanings

nounmiddle rib (plural middle ribs)

A cut of beef between the chuck rib and fore ribs.
biologyThe main vein of a simple leaf or leaflet, running from the petiole to its apex, and from which the other veins usually spread.
Synonyms: midrib, midvein
biologyThe continuation of the petiole of a pinnately compound leaf around which the leaflets attach.
Synonyms: midrib, rachis

nounThe main vein of a simple leaf or leaflet, running from the petiole to its apex, and from which the other veins usually spread.

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nounThe continuation of the petiole of a pinnately compound leaf around which the leaflets attach.

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Cite this entry

APA

middle rib. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/middle%20rib

MLA

“middle rib.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/middle%20rib. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “middle rib,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/middle%20rib.