| 释义 |
‖ crena Bot., Zool., etc.|ˈkriːnə|
[mod.L. crēna incision, notch, corresp. to It. crena notch, nocke (Florio, 1598), F. crene, crenne (16th c.); R. Estienne Petit Dict. 1543 has ‘un cren ou crenne, crena’.
The history of this word is very obscure; L. crēna incision, notch, was formerly read in Pliny, H. N. xi. 37. 68 §180; but it is now held to be an error, so that the word remains without ancient support. But the word, with its derivative crēnātus, has been used freely in mod.L. since the 16th c. From same date F. has also cren, cran n., and crener v., crené pa. pple. An earlier date for the vb. is implied by the ns. crenée (:—crēnāta) = ‘crenel’, and creneure (:—crēnātūra) crenature, 12th c. in Godef. For cren a still higher antiquity is implied by the diminutives crenet and crenel (12th c. in Littré): see crenel. Herewith Diez associates also Rumansch crenna, Lombardian crena, Piedm. cran. But the origin of crena remains uncertain.]
1. An indentation, a notch; spec. in Bot. one of the notches on a toothed or crenated leaf; Anat. the depression or groove between the buttocks; the longitudinal groove on the anterior and posterior surface of the heart (Syd. Soc. Lex.).
2. A crenated tooth, a scallop; spec. in Bot. a round or convex tooth on the margin of a leaf, etc., = crenature, crenel; Entom. a rounded raised mark resembling a wrinkle on a surface or margin; Anat. each of the serrations on the edge of the external table of the cranial bones by which these fit together in the sutures (Syd. Soc. Lex.). |