[1] : The Collaborative International Dictionary of English v.0.48

marsh \marsh\, n. oe. mersch, as. mersc, fr. mere lake. see
   mere pool, and cf. marish, morass.
   a tract of soft wet land, commonly covered partially or
   wholly with water; a fen; a swamp; a morass. written also
   marish.
   1913 webster

   marsh asphodel bot., a plant nartheeium ossifragum
      with linear equitant leaves, and a raceme of small white
      flowers; -- called also bog asphodel.

   marsh cinquefoil bot., a plant potentilla palustris
      having purple flowers, and found growing in marshy places;
      marsh five-finger.

   marsh elder. bot.
   a the guelder-rose or cranberry tree viburnum opulus.
   b in the united states, a composite shrub growing in salt
       marshes iva frutescens.

   marsh five-finger. bot. see marsh cinquefoil above.
      

   marsh gas. chem. see under gas.

   marsh grass bot., a genus spartina of coarse grasses
      growing in marshes; -- called also cord grass. the tall
      spartina cynosuroides is not good for hay unless cut
      very young. the low spartina juncea is a common
      component of salt hay.

   marsh harrier zool., a european hawk or harrier circus
      aeruginosus; -- called also marsh hawk, moor hawk,
      moor buzzard, puttock.

   marsh hawk. zool.
   a a hawk or harrier circus cyaneus, native of both
       america and europe. the adults are bluish slate above,
       with a white rump. called also hen harrier, and mouse
       hawk.
   b the marsh harrier.

   marsh hen zool., a rail; esp., rallus elegans of
      fresh-water marshes, and rallus longirostris of
      salt-water marshes.

   marsh mallow bot., a plant of the genus althaea 
      althaea officinalis common in marshes near the
      seashore, and whose root is much used in medicine as a
      demulcent.

   marsh marigold. bot. see in the vocabulary.

   marsh pennywort bot., any plant of the umbelliferous
      genus hydrocotyle; low herbs with roundish leaves,
      growing in wet places; -- called also water pennywort.
      

   marsh quail zool., the meadow lark.

   marsh rosemary bot., a plant of the genus statice
      statice limonium, common in salt marshes. its root is
      powerfully astringent, and is sometimes used in medicine.
      called also sea lavender.

   marsh samphire bot., a plant salicornia herbacea
      found along seacoasts. see glasswort.

   marsh st. john's-wort bot., an american herb elodes
      virginica with small opposite leaves and flesh-colored
      flowers.

   marsh tea. bot.. same as labrador tea.

   marsh trefoil. bot. same as buckbean.

   marsh wren zool., any species of small american wrens of
      the genus cistothorus, and allied genera. they chiefly
      inhabit salt marshes.
      1913 webster
see also:
mere marish morass marish marsh asphodel nartheeium ossifragum 
bog asphodel marsh cinquefoil potentilla palustris marsh elder viburnum opulus 
iva frutescens marsh five-finger marsh gas gas marsh grass 
spartina cord grass spartina cynosuroides spartina juncea marsh harrier 
circus aeruginosus marsh hawk moor hawk moor buzzard puttock 
marsh hawk circus cyaneus hen harrier mouse hawk marsh hen 
rallus elegans rallus longirostris marsh mallow althaea althaea officinalis 
marsh marigold marsh pennywort hydrocotyle water pennywort marsh quail 
marsh rosemary statice statice limonium sea lavender marsh samphire 
salicornia herbacea glasswort marsh st. john's-wort elodes virginica marsh tea 
labrador tea marsh trefoil buckbean marsh wren cistothorus 

[2] : The Collaborative International Dictionary of English v.0.48

hen \hen\, n. as. henn, hen, haen; akin to d. hen, ohg.
   henna, g. henne, icel. h?na, dan. h"ona; the fem.
   corresponding to as. hana cock, d. haan, ohg. hano, g. hahn,
   icel. hani, dan.  sw. hane. prob. akin to l. canere to sing,
   and orig. meaning, a singer. cf. chanticleer. zool.
   the female of the domestic fowl; also, the female of grouse,
   pheasants, or any kind of birds; as, the heath hen; the gray
   hen.
   1913 webster

   note: used adjectively or in combination to indicate the
         female; as, hen canary, hen eagle, hen turkey, peahen.
         1913 webster

   hen clam. zool.
   a a clam of the mactra, and allied genera; the sea clam
       or surf clam. see surf clam.
   b a california clam of the genus pachydesma.

   hen driver. see hen harrier below.

   hen harrier zool., a hawk circus cyaneus, found in
      europe and america; -- called also dove hawk, henharm,
      henharrow, hen driver, and usually, in america, marsh
      hawk. see marsh hawk.

   hen hawk zool., one of several species of large hawks
      which capture hens; esp., the american red-tailed hawk
      buteo borealis, the red-shouldered hawk buteo
      lineatus, and the goshawk.
      1913 webster
see also:
chanticleer hen clam mactra surf clam pachydesma hen driver 
hen harrier circus cyaneus dove hawk henharm henharrow 
hen driver marsh hawk marsh hawk hen hawk buteo borealis 
buteo lineatus 

[3] : WordNet (r) 2.0

marsh hawk
     n : common harrier of north america and europe; nests in marshes
         and open land syn: northern harrier, hen harrier, circus
         cyaneus
see also:
northern harrier hen harrier circus cyaneus 

Marsh Hawk >> M Words
Marsh Hawk, definition of term: Marsh Hawk
marsh+hawk_pag1.html

Hawk >> H Words
Hawk, definition of term: Hawk
hawk_pag1.html

Marsh >> M Words
Marsh, definition of term: Marsh
marsh_pag1.html

Marsh Elder >> M Words
Marsh Elder, definition of term: Marsh Elder
marsh+elder_pag1.html

Marsh Mallow >> M Words
Marsh Mallow, definition of term: Marsh Mallow
marsh+mallow_pag1.html

Kitty Hawk >> K Words
Kitty Hawk, definition of term: Kitty Hawk
kitty+hawk_pag1.html

Black Hawk >> B Words
Black Hawk, definition of term: Black Hawk
black+hawk_pag1.html

Chicken Hawk >> C Words
Chicken Hawk, definition of term: Chicken Hawk
chicken+hawk_pag1.html

Bee Hawk >> B Words
Bee Hawk, definition of term: Bee Hawk
bee+hawk_pag1.html