plastral

[ plas-truhl ]

adjective

, Zoology.

1. of or relating to a plastron.

Word History and Origins

Origin of plastral¹

First recorded in 1885–90; plastr(on) + -al ¹

Example Sentences

The present specimens have carapace lengths of 250 and 238 mm. and plastral lengths of 185 and 176 mm.

From Project Gutenberg

Chelydra serpentina, which may occur sympatrically with C. rossignoni in some parts of Central America, has a narrower plastral bridge and only two barbels beneath the chin.

From Project Gutenberg

Table 3 summarizes the relationship of abdominal length to plastral length, and of carapace length to plastral length.

From Project Gutenberg

The mathematical mean of the ratio, abdominal length/plastral length, in each of the four groups of larger-sized turtles, was not significantly different from the same ratio in the hatchling group.

From Project Gutenberg

In 1953, turtles in their fifth and sixth years increased in plastral length by 11.4 and 9.1 per cent, or grew at 94.2 and 91.0 per cent of the normal rate, respectively.

From Project Gutenberg