tuberculumn.

1597 P. Lowe Whole Course Chirurg. ix. xii. sig. Ii2 The Cathereticke hath the strength by vehement drying to consume the excrescences of flesh, as Polypus, Tuberculum, verruci.

1615 H. Crooke Μικροκοσμογραϕια 423 Thirdly, because they [sc. the Lungs] are subiect to colde diseases, as obstructions, shortnes of winde, difficulty of breathing, and knottines called Tubercula.

1661 R. Lovell Πανζωορυκτολογια, sive Panzoologicomineralogia 303 As also the radius, with its superiour capitulum and inferiour tuberculum.

1698 J. Floyer Treat. Asthma iii. 123 The sign of the Breeding of a Tuberculum, is when any one in good Health begins to breath short, and as that encreases a Stertor is observ'd in Breathing.

1710 J. Floyer Pulse Watch II. 79 The second degree of a Hectic has the Pulse of an inflammatory Fever, hard, quick, strong, which ripens the crude Tubercula in the Lungs.

1783 J. Barbut Genera Vermium I. 81/1 The Tuberculated Medusa... Round the edges are small oval tubercula.

1872 H. A. Nicholson Man. Palæontol. 350 The ribs have distinct capitula and tubercula.

1939 T. L. Green Pract. Animal Biol. i. 157 The tip of the rib is expanded as the head or capitulum. Further back lies the tuberculum beyond which lies a projection for the attachment of muscle ligaments.

2006 K. D. Rose Beginning Age Mammals ii. 30/2 The head (capitulum) of each rib articulates at the junction of two centra, and the tubercle (tuberculum) of the rib articulates with the transverse process.