/ˈtræbɪk(ə)l/, ˈtrabecule /-kjuːl/.trabeculan.
/trəˈbɛkjʊlə//ˈtræbɪk(ə)l/, ˈtrabecule /-kjuːl/. A structure in an animal or plant resembling a small beam or bar. spec.:
a. Anatomy and Zoology. Each of the plates of bony substance forming the cancellated tissue of a bone; any slender band of tissue extending like a crossbar across a cavity, as of the heart (trabeculæ carneæ), or through the substance of a soft organ, as the spleen or kidney; each of two cartilaginous bars (trabeculæ cranii) in front of the pituitary body in the embryo, which coalesce and develop into part of the cranium; each of the calcareous plates connecting the dorsal and ventral walls in echinoderms; each of a pair of appendages on the head in front of the antennæ in certain bird-lice.
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the world > life > biology > physical aspects or shapes > shape > [noun] > bar-shaped
trabecula1873
trabecularism1891
trabeculation1900
1873 T. H. Green Introd. Pathol. & Morbid Anat. (ed. 2) 137 This tissue, like bone, is made up of trabeculæ and medullary spaces.
1874 E. Coues Birds Northwest 611 Divided..by a cartilaginous trabeculum, which is thrown across from the posterior side to the anterior apex of the base of the pyramid.
1875 Sir W. Turner in Encycl. Brit. I. 853/2 The interior of a bone..is made up of thin delicate plates or bars, or trabecles, which intersect each other at various angles, and form..the spongy or cancellated tissue.
1890 J. S. Billings National Med. Dict. II Trabecula cinerea, soft commissure of the brain.
b. Botany. A projection extending across the cell-cavity in the ducts of some plants, or across the cavity of the sporangium in mosses and other cryptogams.
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1866 J. Lindley & T. Moore Treasury Bot. Trabecula (adj. Trabeculate), a cross-bar; as in the teeth of many mosses.
1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. ii. iv. 413 Both kinds of sporangia [in Isoëtes] are imperfectly segmented by threads of tissue (Trabeculæ) which cross from the ventral to the dorsal side.
Derivatives
traˈbecular adj. pertaining to or of the nature of a trabecula; composed of or furnished with trabeculæ.
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the world > life > biology > physical aspects or shapes > shape > [adjective] > bar-shaped
trabecular1834
trabeculate1866
trabeculated1876
1834 S. Cooper Good's Study Med. (ed. 4) III. 164 Professor Beer..assigns a distinct place..to a cystic form [of cataract] without pus, to a silliquose, and a trabecular.
1847–9 Todd's Cycl. Anat. & Physiol. IV. i. 773/1 The trabecular tissue consists of..cylindrical fibres.
traˈbecularism n. trabecular condition, trabeculation.
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the world > life > biology > physical aspects or shapes > shape > [noun] > bar-shaped
trabecula1873
trabecularism1891
trabeculation1900
1891 Cent. Dict. Trabecularism, in anat., a coarse reticulation, or cross-barred condition, of any tissue.
traˈbeculate adj. = trabeculated adj.
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the world > life > biology > physical aspects or shapes > shape > [adjective] > bar-shaped
trabecular1834
trabeculate1866
trabeculated1876
1866Trabeculate [see sense b].
traˈbeculated adj. furnished with or having trabeculæ.
ΘΚΠ
the world > life > biology > physical aspects or shapes > shape > [adjective] > bar-shaped
trabecular1834
trabeculate1866
trabeculated1876
1876 J. Van Duyn & E. C. Seguin tr. E. L. Wagner Man. Gen. Pathol. 359 They..unite by opposite processes into networks, form trabeculated membranes.
1898 T. C. Allbutt et al. Syst. Med. V. 182 Cavities..traversed by tough septa and bridles..are..described as trabeculated.
trabecuˈlation n. formation of trabeculæ, trabeculated condition.
ΘΚΠ
the world > life > biology > physical aspects or shapes > shape > [noun] > bar-shaped
trabecula1873
trabecularism1891
trabeculation1900
1900 Lancet 5 May 1275/2 Trabeculation of the bladder.
1904 Jrnl. Royal Microsc. Soc. 636.
This entry has not yet been fully updated (first published 1913; most recently modified version published online June 2022).
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n.1834