follicular fluid BTO:0004383 CALOHA:TS-0728 FMA:18665 GAID:372 MA:0002511 MESH:A05.360.319.114.630.535.150 The fluid surrounding the ovum and granulosa cells in the ovarian follicle.. The follicular fluid contains sex steroids, glycoprotein hormones, plasma proteins, mucopolysaccharides, and enzymes and is rich in hyaluronic acid. UBERON:0000038 UMLS:C1709369 antral fluid, ovarian follicle liquor follicularis liquor folliculi liquor folliculi ovarian follicular fluid ovary follicle fluid ovary follicular fluid uberon organism substance