biporose
Alternative form of biporous.

biporous
Having two pores.

biportal
Having or using two portals.

bipositional
Relating to two positions

bipotent
Having the ability to develop into two types of cell

bipotential
Of, pertaining to, or characterised by bipotentiality

bipotentiometric
Relating to bipotentiometry.

biprime
Having exactly two prime factors.

biprimes
plural of biprime

biprofessional
Relating to two professions.

biprong
Synonym of bipronged.

bipronged
Having two prongs.

biproportional
Providing two-way proportionality.

bipterous
Dipterous (having two wings).

bipulmonary
Of or pertaining to both lungs.

bipunctal
Involving two points.

bipunctate
Having two punctures or spots.

bipunctual
Having two points.
Relative to two distinct reference points.

bipupillate
Having an eyespot on the wing, with two dots within it, as in some butterflies.

bipupilled
Having two pupils.

bipyramidal
Having the shape of a bipyramid

biquadrantal
Having two quadrants.

biquadrated
simple past and past participle of biquadrate

biquadratic
Of a polynomial expression, involving only the zeroth, second, and fourth powers of a variable, as x⁴ + 3x² + 2. Sometimes extended to any expression involving the biquadrate or fourth power (but no higher powers), as x⁴ − 4x³ + 3x² − x + 1.

biquadratics
plural of biquadratic

biquarterly
Twice every quarter, i.e. eight times per year.

biquasiprimitive
quasiprimitive in two different ways

biquaternary
Alternative form of bisquaternary.

biquaternionic
Relating to biquaternions.

biquinary
Employing, or relating to, an arithmetical system and notation in which each decimal digit is represented by a coefficient of five and a coefficient of one

biracial
Of or pertaining to two races.

biradial
Having two rays; radiating outward in two directions.
Both radial and bilateral.

biradiate
Having two rays

biradiated
biradiate; having two rays

biradical
any molecule having two independent radical centres
A word or root in a Semitic language which consists of two consonants in its root formula.

biradicaloid
Of or pertaining to a biradical

biradicaloids
plural of biradicaloid

biradicals
plural of biradical

biradicular
Having two roots.

biradiculate
Having a pair of roots

biramose
Alternative form of biramous.

biramous
Branching in two, composed of two branches.

birandom
Exhibiting two levels of randomness.

biraphid
Having a raphe at each of both valves; notably said of diatoms.

birational
Describing a rational geometric function that has a rational inverse

birchen
Made from birch wood.

birchlike
Resembling or characteristic of birch.

birchy
Resembling or characteristic of birch.

birdbrained
Silly and frivolous; empty-headed.

birdish
Having similarities to a bird.
Applied to things relating to birds and bird behaviour.

birdless
Without birds.

birdlike
Similar to a bird or an aspect of a bird; reminiscent of birds.

birdloving
Fond of birds; enamoured of birds.

birdly
Of, pertaining to, or characteristic of birds; avian.

birdproof
Resistant to birds.

birdsweet
Sweet-sounding, dulcet, as of birdsong

birdwise
In the manner of a bird.

biredox
Having two redox moieties in each molecule (typically in a cation and an anion)

birefractive
Birefringent.

birefringent
Of or pertaining to birefringence
Having two refractive indices (depending on orientation)

biregional
Of or relating to two regions.

biregular
Being a regular map with regular inverse.
Having a biregular map from one to the other, i.e. isomorphic as abstract varieties.

birettaed
Alternative spelling of biretta'd.

bireversible
reversible under the action of two linear involutions

birhinal
By means of both nostrils

birhythmic
Composed of two rhythms

birimose
Having two cracks or fissures.

biritual
Alternative form of bi-ritual.

birnaviral
Relating to birnaviruses

biromantic
Romantically attracted to both males and females.

birostrate
Having two beaks (or beak-like structures)

birostrated
Alternative form of birostrate.

birotate
Two-wheeled.

birsy
bristling, bristly (of an animal such as a wolf or a bear).

birthdayish
Resembling or characteristic of a birthday.

birthdayless
Without a birthday, or with no celebration on that day.

birtherist
One who believes in birtherism.

birthmarked
Having a birthmark.

birthy
Resembling or characteristic of birth.

bisacromial
Relating to, or connecting the two acromial processes

bisacylated
Having two acyl functional group; modified by addition of two acyl groups.

bisallenic
Having two allene groups

bisallylic
Having two allene groups

bisaryl
Connected to two aryl groups

bisarylated
arylated with two aryl groups

biscistronic
Of or pertaining to a bicistron
Having two cistrons

biscoctiform
Shaped like a biscuit: typically oblong, and slightly constricted in the middle.

biscribed
Both circumscribed and inscribed, i.e. having vertices that lie on a curve and sides that are tangent to the curve.

biscript
Using two scripts (especially of monolingual text).

biscriptal
having the ability to read or write two scripts
written in two different scripts

biscrolled
scrolled (twisted) in two different ways

biscuitless
Without biscuits.

biscuitlike
Resembling or characteristic of a biscuit.

biscuitty
Alternative form of biscuity.

biscuity
Resembling or characteristic of a biscuit.

biscutate
Having two shields or bucklers (or objects with such a shape)

bisdentate
Alternative form of bidentate.

bisdesmosidic
Pertaining to a saponin with two sugar chains.

bisectarian
Pertaining to sectarianism regarding exactly two sects.

bisected
Divided into two equal pieces.

bisectional
Of, pertaining to, or obtained by bisection

bisectoral
Pertaining to a set of two sectors.

bisegmental
Consisting of two segments.

bisegmented
divided into two segments

biselectrophilic
Having two electrophilic groups

bisemic
Having two meanings depending on context

bisemous
Having two meanings or interpretations.

bisensory
Affecting or relating to two senses.

bisepalous
Synonym of disepalous.

biseptate
With two partitions or septa

biserial
Arranged in two series
Having a correlation between one series and another that is divided into two types

biseriate
In two rows or series; biserial.

biserrate
Having serrations that are themselves serrate.

bisetose
Having two bristles.

bisetous
Alternative form of bisetose.

bisexed
Having or relating to two sexes.

bisexual
Sexually attracted to both opposite-sex and same-sex individuals. (Compare pansexual.)
Having both male and female parts, characteristics, or functions.
Having both male and female parts, characteristics, or functions.
Having both male and female parts, characteristics, or functions.
Having both male and female parts, characteristics, or functions.
Having both male and female parts, characteristics, or functions.
Having both male and female parts, characteristics, or functions.
Having two distinct sexes, male and female (as contrasted with unisexual or hermaphroditic).
Involving two sexes (particularly with regard to reproduction; contrast parthenogenetic or asexual).

bisexy
Bisexual in an appealing manner; equally sexually attractive to men and women.

bisferious
Exhibiting pulsus bisferiens.

bishopless
Without a bishop.

bishoplike
Resembling, or pertaining to a bishop.

bishoply
Like, relating to, or characteristic of a bishop

bishopwise
Moving exclusively in diagonals, as a bishop moves in chess

bishydroxamic
Of or pertaining to a bishydroxamic acid or derivative

bisiliac
Relating to the two iliac bones or fossae

bisimilar
Of two state transition systems, such that a bisimulation exists between the two.

bisindolic
Relating to bisindoles

bisintercalating
That intercalates using two links, or a double bond

bisinuate
doubly sinuate

bismetallated
metallated with two atoms of metal per molecule

bismuthal
Containing bismuth.

bismuthated
Treated with bismuth or one of its compounds.

bismuthatian
Containing bismuthate anions.