Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of hydroid is as below...

Gonosome :: Gonosome (n.) The reproductive zooids of a hydroid colony, collectively..

Blastostyle :: Blastostyle (n.) In certain hydroids, an imperfect zooid, whose special function is to produce medusoid buds. See Hydroidea, and Athecata..

Tubulicole :: Tubulicole (n.) Any hydroid which has tubular chitinous stems.

Polyperythrin :: Polyperythrin (n.) A coloring matter found in many simple Anthozoa and some hydroids.

Trophosome :: Trophosome (n.) The nutritive zooids of a hydroid, collectively, as distinguished from the gonosome, or reproductive zooids..

Periderm :: Periderm (n.) The hard outer covering of hydroids and other marine animals; the perisarc.

Hydrophora :: Hydrophora (n. pl.) The Hydroidea.

Sertularia :: Sertularia (n.) A genus of delicate branching hydroids having small sessile hydrothecae along the sides of the branches.

Sertularian :: Sertularian (n.) Any species of Sertularia, or of Sertularidae, a family of hydroids having branched chitinous stems and simple sessile hydrothecae. Also used adjectively..

Sea Ginger :: Sea ginger () A hydroid coral of the genus Millepora, especially M. alcicornis, of the West Indies and Florida. So called because it stings the tongue like ginger. See Illust. under Millepore..

Gonophore :: Gonophore (n.) A sexual zooid produced as a medusoid bud upon a hydroid, sometimes becoming a free hydromedusa, sometimes remaining attached. See Hydroidea, and Illusts. of Athecata, Campanularian, and Gonosome..

Sea Fir :: Sea fir () A sertularian hydroid, especially Sertularia abietina, which branches like a miniature fir tree..

Gymnochroa :: Gymnochroa (n. pl.) A division of Hydroidea including the hydra. See Hydra.

Hydrosoma :: Hydrosoma (n.) All the zooids of a hydroid colony collectively, including the nutritive and reproductive zooids, and often other kinds..

Coenosarc :: Coenosarc (n.) The common soft tissue which unites the polyps of a compound hydroid. See Hydroidea.

Sessile :: Sessile (a.) Permanently attached; -- said of the gonophores of certain hydroids which never became detached.

Scyphistoma :: Scyphistoma (n.) The young attached larva of Discophora in the stage when it resembles a hydroid, or actinian..

Adelocodonic :: Adelocodonic (a.) Applied to sexual zooids of hydroids, that have a saclike form and do not become free; -- opposed to phanerocodonic..

Polypidom :: Polypidom (n.) A coral, or corallum; also, one of the coral-like structure made by bryozoans and hydroids..

Hydractinian :: Hydractinian (n.) Any species or marine hydroids, of the genus Hydractinia and allied genera. These hydroids form, by their rootstalks, a firm, chitinous coating on shells and stones, and esp. on spiral shells occupied by hermit crabs. See Illust. of Athecata..

Random Fonts

Most Popular