columellan.
/kɒljuːˈmɛlə/ 1. Anatomy.
a. An old name for the uvula.
ΘΚΠ
the world > life > the body > digestive or excretive organs > digestive organs > mouth > [noun] > uvula
tongue of the throat1398
uvulac1400
uve?1527
uvule?1527
columella1585
gargareon1653
pap of the hass1788
staphyle1808
1585 H. Llwyd tr. Pope John XXI Treasury of Health (new ed.) sig. H iiij The lytle flap which couerith the wyndpipe called Uvula, some call it Columella.
b. The modiolus or axis of the cochlea of the ear (columella cochleæ): cf. 2.
ΚΠ
1689 J. Moyle Abstr. Sea Chyrurg. ii. xx. 75 Sometimes by cold men have..their Collumella relaxed.
Categories »
c. Sometimes applied to other structures of analogous form.
2. Conchology. The axis of a spiral shell.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > Testacea (shelled molluscs) > shelled mollusc > shell > part of
auricle1665
heel1673
lip1681
mouth1681
whirl1681
rib1711
antihelix1721
canal1734
columella1755
vesture1755
body whirl1776
fent1776
pillar1776
pillar-lip1776
septum1786
aperture1794
body whorl1807
costa1812
seam1816
spine1822
umbo1822
varix1822
peristome1828
summit1828
nucleus1833
concameration1835
lunula1835
nympha1836
nymph1839
lunule1842
peritreme1848
body chamber1851
axis1866
umbone1867
liration1904
1755 Gentleman's Mag. Jan. 31/2 Columella, the interior axis of the shell from top to bottom, round which the spirals are twisted.
1842 Hist. Berwickshire Naturalists' Club 2 x. 32 The shell..perfectly diaphanous, exhibiting the axis or columella very clearly.
1851 S. P. Woodward Man. Mollusca i. 100 The whirls are closely coiled, leaving only a pillar of shell, or columella, in the centre.
3. Botany.
a. ‘The long axis round which the parts of a (dehiscent) fruit are united: in reality, the ripened growing point’ ( Treasury Bot.).
ΘΚΠ
the world > plants > part of plant > reproductive part(s) > fruit or reproductive product > [noun] > parts of > core
colk1340
core1398
corkc1440
crokec1450
columella1760
column1776
columel1828
1760 J. Lee Introd. Bot. i. vi. 14 The Substance which passes through the Capsule, and connects the several Partitions and Seeds, Columella.
1877 A. W. Bennett tr. O. W. Thomé Text-bk. Struct. & Physiol. Bot. vi. 397 The fruit [of Umbellifers] is a bipartite schizocarp..two halves..separating from the columella.
b. The firm centre or axis of the spore-case of an urn-moss.
ΚΠ
1857 A. Henfrey Elem. Course Bot. §319 A striking peculiarity of the capsule of the Mosses is the existence of this columella, or stalk-like process running up the centre of the cavity of the sporange.
c. A slender axis over which the spore-cases of such ferns as Trichomanes are arranged. ( Treasury Bot.)
ΘΚΠ
the world > plants > particular plants > ferns > [noun] > bristle-ferns or parts
Trichomanes1562
columella1821
bristle-fern1862
Killarney fern1863
1821 S. F. Gray Nat. Arrangem. Brit. Plants I. 222 Columelle, Columella, Sporangidium. A thread-like pillar in the centre of the urn to which the seeds are attached.
1882 S. H. Vines tr. J. von Sachs Text-bk. Bot. (ed. 2) 354 The long sporogonium has a longitudinal dehiscence and no columella.
4. Zoology.
a. A part of the pterygoid bone in the skull of lizards (columella cranii).
ΘΚΠ
the world > animals > reptiles > order Squamata (lizards and snakes) > suborder Lacertilia (lizards) > [noun] > member of (lizard) > part of
wedge-bone1871
columella1873
parietal eye1886
prokinesis1962
1873 St. G. Mivart Lessons Elem. Anat. iii. 111 In Lizards, a peculiar dismemberment of the pterygoid, called the columella, may ascend and join the parietal.
Categories »
b. A delicate bone in the middle ear of birds, reptiles, and amphibians (columella auris). Cf. 1b.
c. The central axis or pillar of the visceral chamber of many corals.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Anthozoa Actinozoa > member of > axis of visceral chamber
columella1848
1848 J. D. Dana U.S. Exploring Exped.: Zoophytes (new ed.) 529 The cells have no distinct columella.
1872 J. D. Dana Corals & Coral Islands i. 44 The bottom of the calicle..in the corallum is sometimes made simply by the meeting of the radiating septa; occasionally..with the addition of a point or columella at the centre.
This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2021).
<
n.1585