Definition of internode in English:

internode

noun

  • 1A slender part between two nodes or joints, in particular:

    • ‘In type II divergence, the evolutionary rate for a specific site is accelerated somewhere along the basal internode that connects the two subfamilies.’
    • ‘We began by eliminating one internode, the fourth internode (the one closest to the t-junction), leaving other parameters unchanged.’
    • ‘The branching pattern observed in Figure 1 shows that the early eutherian radiation was rather rapid (note the short basal internodes coupled with long terminal branches).’
    • ‘The articulated colonies of Crisia fragment into their constituent internodes after decay of the elastic joints.’
    • ‘Genotypic selection analysis revealed strong density-dependent selection in the open site, favoring genotypes with longer internodes at high density and with short internodes at low density.’
    1. 1.1Botany A part of a plant stem between two of the nodes from which leaves emerge.
      • ‘The upright clump of leaves observed on 11 December 1987 was a vestige of the future upright, leafy stem with very short internodes between the leaves.’
      • ‘The leaf is one component of the repeating vegetative segment or phytomer, comprised of the leaf, node, internode, and axillary bud.’
      • ‘The shoot, especially in the upper part, was elongated in OB plants with longer internodes but the same leaf number.’
      • ‘Shoots represent annual increments of extension growth, and their component parts, metamers, consist of a node, an internode, a leaf and an axillary bud.’
      • ‘Buds in the axils of the bracts expanded and repeated the pattern; each had a prophyll that remained in the bract axil, a long internode, then a succession of leaves with shorter internodes and a terminal spikelet.’
    2. 1.2Anatomy A stretch of a nerve cell axon sheathed in myelin, between two nodes of Ranvier.
      • ‘Shortening the t-stem axon to two internodes did not have any effect on ARP, but it slightly increased LCI.’

Origin

Mid 17th century: from Latin internodium, from inter- between + nodus knot.

Pronunciation:

internode

/ˈɪntənəʊd/