Science, Tech, Math › Science Biology Prefixes and Suffixes: Cephal-, Cephalo- Share Flipboard Email Print Sha/Moment Open/Getty Images Science Biology Basics Cell Biology Genetics Organisms Anatomy Physiology Botany Ecology Chemistry Physics Geology Astronomy Weather & Climate By Regina Bailey Biology Expert B.A., Biology, Emory University A.S., Nursing, Chattahoochee Technical College Regina Bailey is a board-certified registered nurse, science writer and educator. Her work has been featured in "Kaplan AP Biology" and "The Internet for Cellular and Molecular Biologists." our editorial process Regina Bailey Updated January 04, 2020 The word part cephal- or cephalo- means head. Variants of this affix include (-cephalic), (-cephalus), and (-cephaly). Words Beginning With (Cephal-) or (Cephalo-) Cephalad (cephal-ad): Cephalad is a directional term used in anatomy to indicate positioning toward the head or anterior end of the body.Cephalalgia (cephal-algia): Pain located in or near the head is called cephalalgia. It is also known as a headache.Cephalic (cephal-ic): Cephalic means of or relating to the head, or located near the head.Cephalin (cephal-in): Cephalin is a type of cell membrane phospholipid found in body cells, particularly in brain and spinal cord tissue. It is also the main phospholipid in bacteria.Cephalization (cephal-ization): In animal development, this term refers to the development of a highly specialized brain that processes sensory input and controls body functions.Cephalocele (cephalo-cele): A cephalocele is a protrusion of part of the brain and meninges through an opening in the skull.Cephalogram (cephalo-gram): A cephalogram is an X-ray of the head and facial area. It assists in obtaining accurate measurements of the jaw and facial bones and is also used as a diagnostic tool for conditions such as obstructive sleep apnea.Cephalohematoma (cephalo-hemat-oma): A cephalohematoma is a pool of blood that collects under the scalp. It typically occurs in infants and results from pressure during the birthing process.Cephalometry (cephalo-metry): The scientific measurement of the bones of the head and face is called cephalometry. Measurements are often taken using radiographic imaging.Cephalopathy (cephalo-pathy): Also called encephalopathy, this term refers to any disease of the brain.Cephaloplegia (cephalo-plegia): This condition is characterized by paralysis that occurs in the muscles of the head or neck.Cephalopod (cephalo-pod): Cephalopods are invertebrate animals, including squid and octopuses, that appear to have limbs or feet that are attached to their heads.Cephalothorax (cephalo-thorax): The fused head and thorax section of the body seen in many arthropods and crustaceans is known as the cephalothorax. Words With (-cephal-), (-cephalic), (-cephalus), or (-cephaly) Brachycephalic (brachy-cephalic): This term refers to individuals with skull bones that are shortened in length resulting in a short, broad head.Encephalitis (en-cephal-itis): Encephalitis is a condition characterized by inflammation of the brain, typically caused by a viral infection. Viruses that cause encephalitis include measles, chickenpox, mumps, HIV, and herpes simplex.Hydrocephalus (hydro-cephalus): Hydrocephalus is an abnormal condition of the head in which the cerebral ventricles expand, causing fluid to accumulate in the brain.Leptocephalus (lepto-cephalus): This term means "slim head" and refers to having an abnormally tall and narrow skull.Megacephaly (mega-cephaly): This condition is characterized by the development of an abnormally large head.Megalencephaly (mega-en-cephaly): Megalencephaly is the development of an abnormally large brain. Individuals with this condition may experience seizures, paralysis, and decreased cognitive function.Mesocephalic (meso-cephalic): Mesocephalic refers to having a head that is of medium size.Microcephaly (micro-cephaly): This condition is characterized by an abnormally small head in relation to body size. Microcephaly is a congenital condition that can be caused by chromosome mutation, exposure to toxins, maternal infections, or trauma.Plagiocephaly (plagio-cephaly): Plagiocephaly is a skull deformity in which the head appears asymmetrical with flat regions. This condition occurs in babies and results from abnormal closure of cranial sutures.Procephalic (pro-cephalic): This directional anatomy term describes a position located near the front of the head.