1824 W. Roxburgh et al. Flora Indica II. 116 Numerous flattened brownish seeds attached to two thick septal placentæ.

1851 T. Wright & G. F. Richardson Introd. Geol. (new ed.) viii. 217 The body has no septal divisions.

1881 St. G. Mivart Cat 76 The septal cartilage of the nose.

1988 G. M. Shepherd in M. S. Gazzaniga Perspectives in Memory Res. ii. 105 The septal fibers make synapses on several targets within the hippocampus.

2008 Oceanic Linguistics 47 453 Septal piercing is virtually unknown among A n [= Austronesian] speakers outside Melanesia.

1847 H. C. Watson Cybele Britannica I. 66 The proposed series of terms run thus:—..Septal.—Plants of hedge-banks and hedge-rows.

1861 Phytologist June 169 There are several groves, copses, or small woods, which..might repay a visit with a reasonable supply of Orchids and other specimens of sylvan or septal plants.

1926 J. J. Walker Nat. Hist. Oxf. District 114 Cuscuta europæa L. is very rare..; in Oxford it was associated with another septal species, Humulus Lupulus L.

1988 N.Z. Jrnl. Bot. 26 382/2 Septal communities originate in two ways, the first by succession from untended herbaceous communities, the second by infiltration into native scrubland, hedges and shrubberies.

1903 Proc. Soc. Antiquaries Scotl. 1902–3 37 63 The chamber is formed of two sections,—a deeper, built of huge stones set on edge, bounding a trench-like space divided into compartments by septal slabs; and an upper, built of small flags placed horizontally.

1958 G. Daniel Megalith Builders W. Europe ii. 44 This segmentation or septalisation may be done by jambs projecting from each side, or by transverse stones or septal stones... Septal stones sometimes reach..half-way up the height of a chamber.

2012 A. Sheridan in A. M. Jones et al. Image, Memory & Monumentality xvii. 167/2 A chamber divided into four segments by septal slabs and overlapping wall-slabs.

1869 Trans. Pathol. Soc. London 20 78 (table) Condition of other parts of heart and extent of septal defect.

1883 H. Allen Syst. Human Anat. vi. 622/2 To determine the fact whether a given instance of [nasal] septal defect be of congenital or of acquired origin, it may be well to remember that congenital defects are apt to be multiple.

1922 Bull. Internat. Assoc. Med. Museums No. 8 192 In all these cases the location of the associated ventricular septal defect was unusual.

1959 Times Lit. Suppl. 25 Sept. 549/5 The author describes the operation for a septal defect—the condition popularly known as a ‘hole in the heart’.

2003 N.Y. Times 9 Sept. (Washington Final ed.) d6/3 They have closed atrial septal defects, openings in the wall between the heart's upper chambers.

1882 J. F. Blake Monogr. Brit. Fossil Cephalopoda i. 39 Barrande..objects to these [theories] on several grounds. The first is the existence of a double envelope..; another is that the septal necks form a continuous tube; but this is scarcely the case.

1970 Elem. Palaeontol. viii. 86 Short septal necks encircle the siphuncle where it passes through the septa.

1842 Dublin Univ. Mag. Aug. 75 There were few baronies in Ireland in which there could not be found Mac's and O's to tell the sad tale of their slavery, and point out the septal inheritance on which their family once lived in comfort and independence as the joint proprietors in fee.

1883 J. H. McCarthy Outl. Irish Hist. iii. 29 He had done much to Normanize the country by making large and wholly illegal grants of Septal territory to his followers.

1902 G. G. Chisholm Europe II. xxxv. 633 St. Patrick astutely grafted his religious organisation upon the semi-communistic system of society which he found existing in the island. Thus the religious communities were rather families or septs, and their head..was but the septal chief invested with ecclesiastical rank.

2004 J. Cook Pirate Queen ii. 10 His [sc. Dubhdara ‘Blackoak’ O'Malley's] septal (or clan) lands were in the west at Umhaill Uachatarach Ui Maille, Murrisk, Co. Mayo.