名詞 crenation:

1. one of a series of rounded projections (or the notches between them) formed by curves along an edge (as the edge of a leaf or piece of cloth or the margin of a shell or a shriveled red blood cell observed in a hypertonic solution etc.)
   同義詞：scallop, crenature, crenel, crenelle

cre.na.tion

n.（名詞）
A rounded projection, as on the margin of a shell.
鈍鋸齒：貝殼邊上的圓形突起
The condition or state of being crenate.
圓齒狀：成為圓齒形的狀態(tài)或條件
A process resulting from osmosis in which red blood cells, in a hypertonic solution, undergo shrinkage and acquire a notched or scalloped surface.
紅血球皺縮：一種滲透過程，紅血球在高滲溶液中經(jīng)歷皺縮并形成V形、扇貝形邊緣的表面