Acalephae :: Acalephae (n. pl.) A group of Coelenterata, including the Medusae or jellyfishes, and hydroids; -- so called from the stinging power they possess. Sometimes called sea nettles..

Acalephan :: Acalephan (n.) One of the Acalephae.

Acalephans :: Acalephans (pl. ) of Acalepha.

Acanthocephala :: Acanthocephala (n. pl.) A group of intestinal worms, having the proboscis armed with recurved spines..

Acanthocephalous :: Acanthocephalous (a.) Having a spiny head, as one of the Acanthocephala..

Acephal :: Acephal (n.) One of the Acephala.

Acephala :: Acephala (n. pl.) That division of the Mollusca which includes the bivalve shells, like the clams and oysters; -- so called because they have no evident head. Formerly the group included the Tunicata, Brachiopoda, and sometimes the Bryozoa. See Mollusca..

Acephalan :: Acephalan (n.) Same as Acephal.

Acephalan :: Acephalan (a.) Belonging to the Acephala.

Acephali :: Acephali (n. pl.) A fabulous people reported by ancient writers to have heads.

Acephali :: Acephali (n. pl.) A Christian sect without a leader.

Acephali :: Acephali (n. pl.) Bishops and certain clergymen not under regular diocesan control.

Acephali :: Acephali (n. pl.) A class of levelers in the time of K. Henry I.

Acephalist :: Acephalist (n.) One who acknowledges no head or superior.

Acephalocyst :: Acephalocyst (n.) A larval entozoon in the form of a subglobular or oval vesicle, or hydatid, filled with fluid, sometimes found in the tissues of man and the lower animals; -- so called from the absence of a head or visible organs on the vesicle. These cysts are the immature stages of certain tapeworms. Also applied to similar cysts of different origin..

Acephalocystic :: Acephalocystic (a.) Pertaining to, or resembling, the acephalocysts..

Acephalous :: Acephalous (a.) Headless.

Acephalous :: Acephalous (a.) Without a distinct head; -- a term applied to bivalve mollusks.

Acephalous :: Acephalous (a.) Having the style spring from the base, instead of from the apex, as is the case in certain ovaries..

Acephalous :: Acephalous (a.) Without a leader or chief.

Acephalous :: Acephalous (a.) Wanting the beginning.

Acephalous :: Acephalous (a.) Deficient and the beginning, as a line of poetry..

Acrocephalic :: Acrocephalic (a.) Characterized by a high skull.

Acrocephaly :: Acrocephaly (n.) Loftiness of skull.

Anencephalic :: Anencephalic (a.) Alt. of Anencephalou.

Anencephalous :: Anencephalous (a.) Without a brain; brainless.

Archencephala :: Archencephala (n. pl.) The division that includes man alone.

Aurocephalous :: Aurocephalous (a.) Having a gold-colored head.

Autocephalous :: Autocephalous (a.) Having its own head; independent of episcopal or patriarchal jurisdiction, as certain Greek churches..

Bicephalous :: Bicephalous (a.) Having two heads.

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