Following are all the mainstem like words, in the list below.
TRIBUTARIES
100% like mainstem
HEADWATER
100% like mainstem
BANKFULL
100% like mainstem
TRIBUTARY
100% like mainstem
EMBAYMENTS
100% like mainstem
LENTIC
100% like mainstem
UNDAMMED
100% like mainstem
ANADROMOUS
100% like mainstem
FISHWAY
100% like mainstem
FISHWAYS
100% like mainstem
TAILRACE
100% like mainstem
TAILWATER
100% like mainstem
NONTIDAL
100% like mainstem
SUBBASIN
100% like mainstem
HEADWATERS
100% like mainstem
DISTRIBUTARY
100% like mainstem
STREAMBANKS
100% like mainstem
SUBWATERSHED
100% like mainstem
DISTRIBUTARIES
100% like mainstem
SUBBASINS
100% like mainstem
STREAMBANK
100% like mainstem
REDDS
100% like mainstem
TAILWATERS
100% like mainstem
RIPARIANS
100% like mainstem
SMALLMOUTHS
100% like mainstem
LOTIC
100% like mainstem
OVERBANK
100% like mainstem
FOREBAY
100% like mainstem
OXBOWS
100% like mainstem
RIPARIAN
100% like mainstem
SUBWATERSHEDS
100% like mainstem
DRAINAGES
100% like mainstem
SUBSEGMENTAL
100% like mainstem
COMMISSURES
100% like mainstem
EMBAYMENT
100% like mainstem
OPERCULAR
100% like mainstem
DIADROMOUS
100% like mainstem
NONNAVIGABLE
100% like mainstem
SESTON
100% like mainstem
RIVER
100% like mainstem
WATERSHEDS
100% like mainstem
BRANCHIAL
100% like mainstem
SMOLTS
100% like mainstem
COHO
100% like mainstem
SHORTNOSE
100% like mainstem
INSTREAM
100% like mainstem
BOTTOMFISH
100% like mainstem
SLACKWATER
100% like mainstem
CARINAL
100% like mainstem
FLOODWAYS
100% like mainstem
UPGRADIENT
100% like mainstem
STREAMSIDES
100% like mainstem
DOWNSTREAM
100% like mainstem
ESTUARIES
100% like mainstem
BASINWIDE
100% like mainstem
COMMISSURE
100% like mainstem
RIVERS
100% like mainstem
MERISTEMS
100% like mainstem
MERISTIC
100% like mainstem
PROXIMAL
100% like mainstem
UNVEGETATED
100% like mainstem
SMALLMOUTH
100% like mainstem
HYDROPERIOD
100% like mainstem
EXCURRENT
100% like mainstem
ESTUARY
100% like mainstem
BOTTOMLANDS
100% like mainstem
PARAMEDIAN
100% like mainstem
SUBMARGINAL
100% like mainstem
MIDVEIN
100% like mainstem
SQUAWFISH
100% like mainstem
BRONCHUS
100% like mainstem
FISHABLE
100% like mainstem
THALWEG
100% like mainstem
FOREGUT
100% like mainstem
STEELHEAD
100% like mainstem
OUTFALLS
100% like mainstem
INTERRENAL
100% like mainstem
WATERSHED
100% like mainstem
PLANKTIVOROUS
100% like mainstem
HYDROGRAPH
100% like mainstem
HYPORHEIC
100% like mainstem
LUMENAL
100% like mainstem
PROGLACIAL
100% like mainstem
STENOTIC
100% like mainstem
UNFORESTED
100% like mainstem
CREEKS
100% like mainstem
NARROWINGS
100% like mainstem
OSTIAL
100% like mainstem
UPSTREAM
100% like mainstem
HEADSTREAM
100% like mainstem
MERISTEMATIC
100% like mainstem
OUTFALL
100% like mainstem
OLIGOHALINE
100% like mainstem
SUBCOSTAL
100% like mainstem
INTERNODAL
100% like mainstem
SHORELANDS
100% like mainstem
DOWNGRADIENT
100% like mainstem
DELTAIC
100% like mainstem
LABIALS
100% like mainstem
INTERSEGMENTAL
100% like mainstem
