| NODEOFRANVIER | Gap in the myelin sheath of a nerve fibre, named after the French physician (4,2,7) |
| SISAL | Fiber named for a town in Mexico |
| SENSORY | Receptive; of a nerve fibre or impulse moving to the central nervous system (7) |
| NEUROTRANSMITTER | Chemical substance released from the end of a nerve fibre |
| MS | A chronic progressive nervous disorder involving loss of myelin sheath around certain nerve fibers. |
| AXON | Cell projection insulated by a myelin sheath |
| CREATEAVACUUM | Find a gap in the method of manufacturing flask? (6,1,6) |
| SPACESTATIONS | Rubbish particles follow gaps in the cosmos havens (5,8) |
| SPINABIFIDA | A congenital condition in which the meninges of the spinal cord protrude through a gap in the backbone |
| REAUMUR | Temperature scale in which the freezing point of water is 0degrees and the boiling point is 80degrees, named after the French naturalist who introduced it in 1730 (7) |
| ROULETTE | Casino game named after the French meaning "little wheel"; or, a tiny incision on a sheet of stamps, similar to a perforation (8) |
| LEUCOTOMY | Surgical operation that involves cutting some of the nerve fibres in the frontal lobes of the brain |
| SAVARIN | Light ring-shaped yeast cake soaked with rum or other alcohol, named after the French author of 1825's The Physiology of Taste (7) |
| CASSINI | The divisions or gaps in the rings of Saturn named after an Italian-born French astronomer (7) |
| PAPILLON | Toy breed of the spaniel family named after the French word for 'butterfly' (8) |
| BREACH | Part of a gun, we hear, to produce a gap in the defence (6) |
| LOBOTOMY | Surgery to sever nerve fibres in the front of the brain |
| ENNUI | A sonnet by Sylvia Plath named after the French word for boredom, weariness or languor (5) |
| BRIE | Soft cows' cheese named after the French province in which it originated |
| CORANGLAIS | Type of oboe named after the French for English horn (3,7) |
