Hyporachis is a related term of rachis.
In ornithology terms the difference between rachis and hyporachis
is that rachis is the central shaft of a feather while hyporachis is the downy lower barbs of a feather.
As nouns the difference between rachis and hyporachis
is that rachis is the main shaft of either a compound leaf, head of grain, or fern frond while hyporachis is the downy lower barbs of a feather.
rachis
Alternative forms
* rhachis
Noun
(en-noun)
(botany) The main shaft of either a compound leaf, head of grain, or fern frond.
(zoology, anatomy) The spine or the vertebrae of the spine.
(ornithology) The central shaft of a feather.
Usage notes
* The plural form (rachides) is technically erroneous, being based on a mistaken impression of the Ancient Greek stem.
Anagrams
*
*
hyporachis
English
Noun
(es)
(ornithology) The downy lower barbs of a feather.
Synonyms
* (downy lower barbs of a feather) afterfeather
Related terms
* rachis
