cephalo-, cephal-; -cephalic, -cephalism, -cephalous, -cephalus; -cephaly

(Greek: head)

Sometimes these "head" elements are also written as: kephalo-, kephal-, etc.

abrachiocephalia, acephalobrachia (s) (noun); abrachiocephalias, acephalobrachias (pl)
A congenital absence of the head and arms or upper limbs: The veterinarian was puzzled by the birth of the pig that had been born with abrachiocephalia.

The acephalobrachia and the abrachiocephalia consist of humans that are missing heads and upper arms during fetal development and then at birth.

abrachiocephalus, abrachiocephaly, acephalobrachius
A fetus exhibiting the absence of the head and arms.
acanthocephalid
acepalothoracia
acephalia (s) (noun) (no plural)
1. The absence of a head; having no head: The strange lizard appeared to be an acephalia because its head was difficult to discern.
2. Having no leader, ruler, or government head: After the political rebellion, the nation experienced a period of acephalia before a new leader was chosen.
acephaline
Denoting members of the protozoan suborder Acephalina (order Eugregarinida), characterized by simple noncompartmentalized bodies, that parasitize invertebrates.
acephalism
acephalobrachia (s) (noun) (no plural)
The absence of the head and arms which is present at birth, but not necessarily hereditary: The research department at the hospital studied the unusual congenital condition of acephalobrachia.
acephalochiria (s) (noun) (no plural)
Congenital absence of head and hands; a condition that is acquired during fetal development and present at birth: At the university, research was being conducted about those who have acephalochiria conditions.
acephalogaster
acephalopodia
acephalorhachia
A fetus exhibiting acephalostomia.
acephalostomia
The congenital absence of the head, yet with a kind of mouth on the superior aspect.
acephalous (adjective), more acephalous, most acephalous
1. Not having a head or a clearly defined head: Earthworms are obviously acephalous insects.
2. A reference to being without a leader or chief: After the chairperson of the Board of Education resigned, the Board was acephalous until an interim replacement was appointed.
3 Etymology: from Greek akephalos (via Latin), "headless"; from a-, "without" + kephale, "head" + -ous, "characterized by, of the nature of".
Without a leader, headless.
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acephalus