| 释义 |
sphae·ri·um
\ˈsfirēəm\ noun
Usage: capitalized
Etymology: New Latin, from Greek sphairion, diminutive of sphaira ball, sphere — more at sphere
: a widely distributed genus (the type of the family Sphaeriidae) of small viviparous freshwater bivalve mollusks that have a thin light-colored shell and the siphons separate — see fingernail clam |