(1) This is a small group of specialized ellesmerocerids with a concave outline of siphuncle segments.

(2) Choose only firm tubers and look for those with tiny sprouts showing on their upper, concave surfaces.

(3) The human shoulder blade is a thin triangle of bone with a thick crest along one edge, and a shallow, concave joint surface in one corner.

(4) It is possible to see the outline of a concave fau00d4u00f6u00a3u252cu2551ade and shallow forecourt.

(5) Depressions are concave regions on protein surfaces that have no constriction at the mouth.

(6) The articular surface itself is concave , not convex as in many chelonioids.

(7) Similar double curvatures were used for concave lenses, and even more complicated corrections for astigmatism.

(8) Above it, to signal the presence of occupied space, is a shallow concave circle dug out of the ground.

(9) You maintain your lower back curve, which is concave , by sitting straight in your chair.

(10) The first surface of the head support arm is concave and the second surface of the head support arm is convex.

(11) Where the old car had concave surfaces on the doors, the new doors swell outwards, lending more bulk to the profile.

(12) You stand in a dark room looking at a round concave surface perhaps five feet in diameter.

(13) McElwee contrasts convex and concave forms with building recesses and relief carvings.

(14) The shape of each is similar, with a slightly concave surface, a rolled rim, and a high foot ring.

(15) If the outside edges appear to get sanded first, yet the middle part isn't affected, then you have a concave surface.

(16) As the enamel shrinks on melting and cools with a concave surface, more has to be poured in and the process repeated.

(17) Pictures of bound feet show the toes bent right under the sole, which is so curved it is concave .

(18) Galileo's telescope had a convex object lens but a concave eye-piece.

(19) The exterior walls were composed of concave and convex red bricks.

(20) Its profile may show anything from a rather gentle concave upward curve to a series of complex scarps and sediment-filled basins.