The outer layer of the uterus is called the perimetrium; it is the visceral. peritoneum of the uterus. The endometrium has two distinct layers (Fig. 28.9c): (1) The functional layer changes in. response to the monthly pattern of hormones.
uk â /ËpÉªn.É.kÉl/ us â /ËpÉªn.É.kÉl/. âº [ C usually singular ] the most successful or admired part of a system or achievement: By the age of 32 she had reached the pinnacle of her career.
the highest part or point a singer who has reached the pinnacle of success Synonyms acme, apex, apogee, capstone, climax, crescendo, crest, crown, culmination, head, high noon, high tide, high-water mark, meridian, ne plus ultra, noon, noontime, peak, height, sum, summit, tip-top, top, zenithRelated Words bloom, blossom, flood tide, flower, glory, ...