deep fissure

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• Fissure — Fis sure, n. [L. fissura, fr. findere, fissum, to cleave, split; akin to E. bite: cf. F. fissure.] A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock. [1913 Webster] {Cerebral fissures} (Anat.), the furrows …   The Collaborative International Dictionary of English

• Fissure needle — Fissure Fis sure, n. [L. fissura, fr. findere, fissum, to cleave, split; akin to E. bite: cf. F. fissure.] A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock. [1913 Webster] {Cerebral fissures} (Anat.), the …   The Collaborative International Dictionary of English

• Fissure of rolando — Fissure Fis sure, n. [L. fissura, fr. findere, fissum, to cleave, split; akin to E. bite: cf. F. fissure.] A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock. [1913 Webster] {Cerebral fissures} (Anat.), the …   The Collaborative International Dictionary of English

• Fissure of Sylvius — Fissure Fis sure, n. [L. fissura, fr. findere, fissum, to cleave, split; akin to E. bite: cf. F. fissure.] A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock. [1913 Webster] {Cerebral fissures} (Anat.), the …   The Collaborative International Dictionary of English

• Fissure vein — Fissure Fis sure, n. [L. fissura, fr. findere, fissum, to cleave, split; akin to E. bite: cf. F. fissure.] A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock. [1913 Webster] {Cerebral fissures} (Anat.), the …   The Collaborative International Dictionary of English

• Fissure (disambiguation) — Fissure may refer to one of the following.*Fissure, in anatomy, a groove, natural division, deep furrow, cleft, or tear in various parts of the body. *fissure (dentistry), a break in the tooth enamel. *fissure (geology), a crack in rock… …   Wikipedia

• Deep-sea exploration — is the investigation of physical, chemical, and biological conditions on the sea bed, for scientific or commercial purposes. Deep sea exploration is considered as a relatively recent human activity compared to the other areas of geophysical… …   Wikipedia

• fissure — [fish′ər] n. [ME < OFr < L fissura < fissus: see FISSION] 1. a long, narrow, deep cleft or crack 2. a dividing or breaking into parts 3. Anat. a groove between lobes or parts of an organ, as in the brain 4. Med. a break or ulceration… …   English World dictionary

• fissure of Ro|lan|do — «roh LAN doh», a deep groove separating the frontal and parietal lobes of each hemisphere of the brain; central fissure. ╂[< Luigi Rolando, 1773 1831, an Italian anatomist] …   Useful english dictionary

• Deep Empire —   …   Wikipedia

• Fissure — A cleft or groove. A fissure can be normal or abnormal. A fissure in the cerebral cortex is a normal feature. It is a deep fold that involves the entire thickness of the brain wall. A fissure in the anus is distinctly abnormal. It is a painful… …   Medical dictionary