subrotundadj.

1753 Chambers's Cycl. Suppl. at Leaf Subrotund Leaf, that approaching to the figure of the orbicular leaf, but departing from it, either in being too long, or too broad, or prominent.

1803 B. S. Barton Elements Bot. 294 Subrotundum, subrotund, or roundish; as in Selago fruticosa.

1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. I 167 Two anterior teeth subrotund.

1861 R. Bentley Man. Bot. i. iii. 167 When a leaf is perfectly round, it is orbicular..a figure which is scarcely or ever found, but when it approaches to orbicular as in Pyrola rotundifolia, it is subrotund or rounded.

1913 Amer. Jrnl. Sci. 453 Subangular to subrotund pebbles of white quartz, 0.25 to 0.75 in. in diameter.

1947 Bryologist 50 316 The ventral lobes of the leaves are said to be subrotund, long rostrate, with the beak narrow and strongly incurved.

2009 D. Muir Wood Soil Mech. v. 102 Sands and gravels tend to have much more rotund or sub-rotund particles—not actually round but not usually plate-like.