columella


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columella

 [kol″u-mel´ah] (pl. columel´lae) (L.)
a little column.
columella na´si the fleshy external termination of the septum of the nose.

col·u·mel·la

, pl.

col·u·mel·lae

(kol'ū-mel'ă, -mel'ē),
1. A column, or a small column. Synonym(s): columnella
2. In fungi, a sterile invagination of a sporangium, as in Zygomycetes.
[L. dim. of columna, column]

columella

(kŏl′yə-mĕl′ə, kŏl′ə-)
n. pl. colu·mellae (-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.

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

col·u·mel·la

, pl. columellae (kol'yū-mel'ă, -ē)
1. A small column.
Synonym(s): columnella.
2. In fungi, a sterile invagination of a sporangium, as in Zygomycetes.
[L. dim. of columna, column]

columella

The ridge of skin between the nostrils.
Columellaclick for a larger image
Fig. 117 Columella (2). The sporangium of Mucor.

columella

  1. the sterile central column in the sporangia of mosses and liverworts.
  2. the domed structure forming a pillar supporting the sporangium of some fungi, e.g. Mucor. See Fig. 117 .
  3. the central area of a root cap which contains STATOLITHS (1).
  4. the central axis of a fruit.

Columella

The strip of skin running from the tip of the nose to the upper lip, which separates the nostrils.
Mentioned in: Rhinoplasty
References in periodicals archive ?
Analysis of the PCA results with ANOVA found a significant environmental effect on PC1, which was defined primarily by corallite architectural traits including corallite spacing, columella area, intersepta area, and septa length, and on PC3, which was defined almost entirely by branch diameter (Tables 3 and 4).
(c) alar width, which was measured from the midway point at the base of the columella to the most lateral point of the nostril in a line perpendicular to the axis of the columella;
Aperture subcircular, strongly oblique to vertical axis of shell; peristome incomplete, interrupted briefly in parietal region; rim of peristome reflected forming a flaring lip, but this not noticeably enlarged in columella region.
Angle of columella from cleft side--Angle between a line bisecting the columella and horizontal reference line measured on cleft side
The shell is low spired with well rounded whorls, no umbilicus, smooth aperture, base of the columella has strong pointed tooth, brown or green spiral lines and dashes on shell, bright green algae often covers shell, (Khan and Dastagir, 1970) (Fig.
[1] Columella is a comic novel built upon the fragments of the novel of sensibility.
Euglandininae (Baker 1941) the shells usually are medium- to large-sized ovate or elongate-ovate, and they have a truncated columella ending at the base of the aperture.
It has not yet been imported to the UK, but given the fact that Sadie makes one of the most highly-praised red wines ever to have come out of South Africa - "Columella" - it won't be long before someone snaps it up.
According to Columella (9.2) Zeus actually turned her into a bee.