Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


 (kŏl′yə-mĕl′ə, kŏl′ə-)
n. pl. col·u·mel·lae (-mĕl′ē)
Any small columnlike structure in various plants and animals, often forming the central axis of development for the organism or an anatomical structure.

[Latin, diminutive of columna, column; see column.]

col′u·mel′lar (-mĕl′ər) adj.
col′u·mel′late′ (-mĕl′āt′) adj.


n, pl -lae (-liː)
1. (Biology) biology
a. the central part of the spore-producing body of some fungi and mosses
b. any similar columnar structure
2. (Zoology) Also called: columella auris a small rodlike bone in the middle ear of frogs, reptiles, and birds that transmits sound to the inner ear: homologous to the mammalian stapes
[C16: from Latin: diminutive of columna column]
ˌcoluˈmellar adj


(ˌkɒl yəˈmɛl ə)

n., pl. -mel•lae (-ˈmɛl i)
1. any of various small, columnlike structures of animals or plants; rod or axis.
2. the middle ear bone of amphibians, reptiles, and birds.
[1575–85; < Latin, diminutive of columna column; see -elle]
col`u•mel′lar, adj.
col`u•mel′late (-ɪt, -eɪt) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.columella - a small column (or structure resembling a column) that is a part of a plant or animal
pillar, tower, column - anything that approximates the shape of a column or tower; "the test tube held a column of white powder"; "a tower of dust rose above the horizon"; "a thin pillar of smoke betrayed their campsite"
References in classic literature ?
March strolled placidly about, quoting Tusser, Cowley, and Columella to Mr.
Offset (O) affected the radial migration of the aperture from the columella [Raup's (1966) coiling axis].
Columella gathered information that was available to the Romans, and set out advice on soil suitability (Olson).
7) Both authors refer to Richard Graves's novel Columella (1779).
Housman reads assueta euolitans; the former word is a conjecture of his own, the latter a conjecture of Ellis, which I think he would have ignored if the relevant fascicle of the Thesaurus had been available to show that euolitare occurs once in Columella and then (if at all) not before the sixth century.
Others prefer an "open" procedure, especially in more complicated cases; they make a small incision across the columella, the vertical strip of tissue separating the nostrils.
Forms of congenital, acquired, or treatment caused facial disfigurements which may be regarded as cultural include "oriental eyelid," non-caucasian nose, double chin, absence of a second cheek dimple, pigmentation problems such as freckles or port wine stain, wrinkles, cheek furrows, flaring of nostrils, other unwanted nasal features such as tips, humps, hanging columella, etc.
CASE REPORT: A 35 years old male person presented with a small soft tissue growth arising from the left margin of nasal columella.
Reconstruction of the nasal tip including the columella and soft triangle using a mastoid composite graft.
columella entre los 4000-4500 msnm, con un indice cercario (IC) de 36 a 48% (Londone et al.
The most posterior point of the lower border of the nose at which it begins to turn inferiorly to merge with the philtrum of the upper lip was locat- ed and was called posterior columella point or PCm.
Specimens with a similarly dense spiral sculpture have been collected at Andranavory in the Toliara [Tulear] region, but these are more elevated and have a flaring white lip, which is broadly reflected in the columella region, half covering the umbilicus.