What's the difference between tessera and tesserae?
Tessera
Definition:
(n.) A small piece of marble, glass, earthenware, or the like, having a square, or nearly square, face, used by the ancients for mosaic, as for making pavements, for ornamenting walls, and like purposes; also, a similar piece of ivory, bone, wood, etc., used as a ticket of admission to theaters, or as a certificate for successful gladiators, and as a token for various other purposes.
Example Sentences:
(1) Transmission electron microscopy shows calcification in close association with coarse collagen fibrils on the outer side of a tessera, but such fibrils are absent from the cartilaginous matrix along the under side of tesserae.
(2) If so, the cap could be considered a thin veneer of bone atop the calcified cartilage of the body of a tessera.
(3) The outer zone of tesserae, the cap, is composed of calcified tissue which appears to be produced by perichondrial fibroblasts more directly, i.e., without first differentiating as chondroblasts.
(4) Individual tesserae develop peripherally at the boundary between cartilage and perichondrium.
(5) Calcospherites and hydroxyapatite crystals similar to those commonly seen on the surface of bone are present on the outer surface of the tessera adjacent to the perichondrium.
(6) By scanning electron microscopy it was observed that outer and inner surfaces of tesserae differ in appearance.
Tesserae
Definition:
(pl. ) of Tessera
Example Sentences:
(1) Transmission electron microscopy shows calcification in close association with coarse collagen fibrils on the outer side of a tessera, but such fibrils are absent from the cartilaginous matrix along the under side of tesserae.
(2) If so, the cap could be considered a thin veneer of bone atop the calcified cartilage of the body of a tessera.
(3) The outer zone of tesserae, the cap, is composed of calcified tissue which appears to be produced by perichondrial fibroblasts more directly, i.e., without first differentiating as chondroblasts.
(4) Individual tesserae develop peripherally at the boundary between cartilage and perichondrium.
(5) Calcospherites and hydroxyapatite crystals similar to those commonly seen on the surface of bone are present on the outer surface of the tessera adjacent to the perichondrium.
(6) By scanning electron microscopy it was observed that outer and inner surfaces of tesserae differ in appearance.